中級軟件設(shè)計(jì)_師單項(xiàng)選擇考試卷模擬考試題_2

1、姓名：_ 班級：_ 學(xué)號：_-密-封 -線- 中級軟件設(shè)計(jì)_師單項(xiàng)選擇考試卷模擬考試題考試時(shí)間：120分鐘 考試總分：100分題號一二三四五總分分?jǐn)?shù)遵守考場紀(jì)律，維護(hù)知識尊嚴(yán)，杜絕違紀(jì)行為，確?？荚嚱Y(jié)果公正。1、設(shè)t是正則二叉樹，有6個(gè)葉子結(jié)點(diǎn)，那么樹t的高度最多可以是(1)；最小可以是(2)；樹t的內(nèi)結(jié)點(diǎn)數(shù)是(3)。如果t又是huffman最優(yōu)樹，且每個(gè)葉子結(jié)點(diǎn)的權(quán)分別是1，2，3，45，5，6，則最優(yōu)樹t的非葉子結(jié)點(diǎn)的權(quán)之和是(4)；權(quán)為1的葉子結(jié)點(diǎn)的高度是(5)。(注：樹的根結(jié)點(diǎn)高度為1)（1）處填（ ）a.7b.6c.5d.42、設(shè)t是正則二叉樹，有6個(gè)葉子結(jié)點(diǎn)，那么樹t的高度最多可以

2、是(1)；最小可以是(2)；樹t的內(nèi)結(jié)點(diǎn)數(shù)是(3)。如果t又是huffman最優(yōu)樹，且每個(gè)葉子結(jié)點(diǎn)的權(quán)分別是1，2，3，45，5，6，則最優(yōu)樹t的非葉子結(jié)點(diǎn)的權(quán)之和是(4)；權(quán)為1的葉子結(jié)點(diǎn)的高度是(5)。(注：樹的根結(jié)點(diǎn)高度為1)（2）處填（ ）a.7b.6c.5d.43、設(shè)t是正則二叉樹，有6個(gè)葉子結(jié)點(diǎn)，那么樹t的高度最多可以是(1)；最小可以是(2)；樹t的內(nèi)結(jié)點(diǎn)數(shù)是(3)。如果t又是huffman最優(yōu)樹，且每個(gè)葉子結(jié)點(diǎn)的權(quán)分別是1，2，3，45，5，6，則最優(yōu)樹t的非葉子結(jié)點(diǎn)的權(quán)之和是(4)；權(quán)為1的葉子結(jié)點(diǎn)的高度是(5)。(注：樹的根結(jié)點(diǎn)高度為1)（3）處填（ ）a.7b.6c.5d

3、.44、設(shè)t是正則二叉樹，有6個(gè)葉子結(jié)點(diǎn)，那么樹t的高度最多可以是(1)；最小可以是(2)；樹t的內(nèi)結(jié)點(diǎn)數(shù)是(3)。如果t又是huffman最優(yōu)樹，且每個(gè)葉子結(jié)點(diǎn)的權(quán)分別是1，2，3，45，5，6，則最優(yōu)樹t的非葉子結(jié)點(diǎn)的權(quán)之和是(4)；權(quán)為1的葉子結(jié)點(diǎn)的高度是(5)。(注：樹的根結(jié)點(diǎn)高度為1)（4）處填（ ）a.7b.6c.5d.45、設(shè)t是正則二叉樹，有6個(gè)葉子結(jié)點(diǎn)，那么樹t的高度最多可以是(1)；最小可以是(2)；樹t的內(nèi)結(jié)點(diǎn)數(shù)是(3)。如果t又是huffman最優(yōu)樹，且每個(gè)葉子結(jié)點(diǎn)的權(quán)分別是1，2，3，45，5，6，則最優(yōu)樹t的非葉子結(jié)點(diǎn)的權(quán)之和是(4)；權(quán)為1的葉子結(jié)點(diǎn)的高度是(5)

4、。(注：樹的根結(jié)點(diǎn)高度為1)（5）處填（ ）a.7b.6c.5d.46、the cpu does not have to look(6)all of ram to find the spot it needs. but ram only(7)the data temporarily. as soon as you switch the computer(8), all that information disappears from the ram. when you switch the computer on again, the ram is(9), and ready(10)a new

5、 program and new data.（6）處填（ ）a.onb.throughc.ford.down upon7、the cpu does not have to look(6)all of ram to find the spot it needs. but ram only(7)the data temporarily. as soon as you switch the computer(8), all that information disappears from the ram. when you switch the computer on again, the ram

6、is(9), and ready(10)a new program and new data.（7）處填（ ）a.takesb.operatesc.erasesd.holds8、the cpu does not have to look(6)all of ram to find the spot it needs. but ram only(7)the data temporarily. as soon as you switch the computer(8), all that information disappears from the ram. when you switch the

7、 computer on again, the ram is(9), and ready(10)a new program and new data.（8）處填（ ）a.offb.onc.upd.down9、the cpu does not have to look(6)all of ram to find the spot it needs. but ram only(7)the data temporarily. as soon as you switch the computer(8), all that information disappears from the ram. when

8、 you switch the computer on again, the ram is(9), and ready(10)a new program and new data.（9）處填（ ）a.fullb.emptyc.zerod.blank10、the cpu does not have to look(6)all of ram to find the spot it needs. but ram only(7)the data temporarily. as soon as you switch the computer(8), all that information disapp

9、ears from the ram. when you switch the computer on again, the ram is(9), and ready(10)a new program and new data.（10）處填（ ）a.receiveb.be receivedc.receivingd.received11、某工作站采用時(shí)鐘頻率f為15mhz，處理速率為10mip/s的處理機(jī)來執(zhí)行一個(gè)已知混合程序。假定每次存儲器存取為1周期延遲，此計(jì)算機(jī)的有效cpi是(33)，假定將處理機(jī)的時(shí)鐘頻率，廠提高到30mhz，但存儲器子系統(tǒng)速率不變。這樣，每次存儲器存取需要兩個(gè)時(shí)鐘周期，如

10、果30%指令每條只需要一次存儲存取，而另外5%每條需要兩次存儲存取，還假定已知混合程序的指令數(shù)不變，并與原工作站兼容，則改進(jìn)后的處理機(jī)性自(34)。（33）處填（ ）a.1.5b.3c.0.725d.1.612、某工作站采用時(shí)鐘頻率f為15mhz，處理速率為10mip/s的處理機(jī)來執(zhí)行一個(gè)已知混合程序。假定每次存儲器存取為1周期延遲，此計(jì)算機(jī)的有效cpi是(33)，假定將處理機(jī)的時(shí)鐘頻率，廠提高到30mhz，但存儲器子系統(tǒng)速率不變。這樣，每次存儲器存取需要兩個(gè)時(shí)鐘周期，如果30%指令每條只需要一次存儲存取，而另外5%每條需要兩次存儲存取，還假定已知混合程序的指令數(shù)不變，并與原工作站兼容，則改進(jìn)

11、后的處理機(jī)性自(34)。（34）處填（ ）a.提高b.降低c.不變d.無法確定13、表示實(shí)體類型及實(shí)體間聯(lián)系的模型稱為數(shù)據(jù)模型，其中關(guān)系模型主要特征是用(43)表示實(shí)體集，(44)表示實(shí)體間聯(lián)系。關(guān)系運(yùn)算以關(guān)系代數(shù)為理論基礎(chǔ)，關(guān)系代數(shù)的最基本操作是并、差、笛卡爾積、(45)。完整性規(guī)則提供了一種手段來保證當(dāng)授權(quán)用戶對數(shù)據(jù)庫作修改時(shí)不會破壞數(shù)據(jù)的一致性。關(guān)系模型的完整性規(guī)則是對關(guān)系的某種約束條件，其中參照完整性要求(46)。假設(shè)關(guān)系r的屬性f是關(guān)系s的外碼，在對關(guān)系r和s的操作中，不可能破壞參照完整性的是(47)。（43）處填（ ）a.樹節(jié)點(diǎn)b.網(wǎng)絡(luò)節(jié)點(diǎn)c.二維表d.屬性14、表示實(shí)體類型及l(fā)d

12、.樹15、表示實(shí)體類型及實(shí)體間聯(lián)系的模型稱為數(shù)據(jù)模型，其中關(guān)系模型主要特征是用(43)表示實(shí)體集，(44)表示實(shí)體間聯(lián)系。關(guān)系運(yùn)算以關(guān)系代數(shù)為理論基礎(chǔ)，關(guān)系代數(shù)的最基本操作是并、差、笛卡爾積、(45)。完整性規(guī)則提供了一種手段來保證當(dāng)授權(quán)用戶對數(shù)據(jù)庫作修改時(shí)不會破壞數(shù)據(jù)的一致性。關(guān)系模型的完整性規(guī)則是對關(guān)系的某種約束條件，其中參照完整性要求(46)。假設(shè)關(guān)系r的屬性f是關(guān)系s的外碼，在對關(guān)系r和s的操作中，不可能破壞參照完整性的是(47)。（45）處填（ ）a.投影和自然連接b.投影和選擇c.交和選擇d.交和自然連接16、表示實(shí)體類型及實(shí)體間聯(lián)系的模型稱為數(shù)據(jù)模型，其中關(guān)系模型主要特征是用(4

13、3)表示實(shí)體集，(44)表示實(shí)體間聯(lián)系。關(guān)系運(yùn)算以關(guān)系代數(shù)為理論基礎(chǔ)，關(guān)系代數(shù)的最基本操作是并、差、笛卡爾積、(45)。完整性規(guī)則提供了一種手段來保證當(dāng)授權(quán)用戶對數(shù)據(jù)庫作修改時(shí)不會破壞數(shù)據(jù)的一致性。關(guān)系模型的完整性規(guī)則是對關(guān)系的某種約束條件，其中參照完整性要求(46)。假設(shè)關(guān)系r的屬性f是關(guān)系s的外碼，在對關(guān)系r和s的操作中，不可能破壞參照完整性的是(47)。（46）處填（ ）a.不允許引用不存在的元組b.允許引用不存在的元組c.不允許引用不存在的屬性d.允許引用不存在的屬性17、表示實(shí)體類型及實(shí)體間聯(lián)系的模型稱為數(shù)據(jù)模型，其中關(guān)系模型主要特征是用(43)表示實(shí)體集，(44)表示實(shí)體間聯(lián)系。關(guān)

14、系運(yùn)算以關(guān)系代數(shù)為理論基礎(chǔ)，關(guān)系代數(shù)的最基本操作是并、差、笛卡爾積、(45)。完整性規(guī)則提供了一種手段來保證當(dāng)授權(quán)用戶對數(shù)據(jù)庫作修改時(shí)不會破壞數(shù)據(jù)的一致性。關(guān)系模型的完整性規(guī)則是對關(guān)系的某種約束條件，其中參照完整性要求(46)。假設(shè)關(guān)系r的屬性f是關(guān)系s的外碼，在對關(guān)系r和s的操作中，不可能破壞參照完整性的是(47)。（47）處填（ ）a.對關(guān)系r執(zhí)行insert命令b.對關(guān)系r執(zhí)行update命令c.對關(guān)系s執(zhí)行insert命令d.對關(guān)系s執(zhí)行update命令18、從下列敘述中選出5條正確的敘述，并把編號按從小到大次序排列，它們是(51)、(52)、(53)、(54)、(55)。（51）處填

15、（ ）a.解釋程序是接受源程序，將其轉(zhuǎn)換成中間代碼，然后對其解釋執(zhí)行，它并不產(chǎn)生機(jī)器代碼b.編譯程序是把高級語言書寫的程序，翻成中間代碼，然后逐條執(zhí)行，產(chǎn)生機(jī)器代碼c.就執(zhí)行速度而言，編譯程序比解釋程序快d.解釋程序是用來逐句分析和執(zhí)行源程序語句的計(jì)算機(jī)程序e.cobol和fortran語言程序通常都在商業(yè)領(lǐng)域方面應(yīng)用廣范f.使用解釋程序時(shí)，因?yàn)槭侵鹁涞胤g執(zhí)行源程序的語句，所以可以逐條語句排錯g.匯編語言的功能是將匯編語言書寫的源程序翻譯成由機(jī)器指令和其他信息組成的目標(biāo)程序h.任何一種匯編語言的每一語句都能對應(yīng)一條機(jī)器語言指令i.i連接裝配程序可以把經(jīng)解釋程序產(chǎn)生的目標(biāo)程序變成可執(zhí)行的機(jī)器語

16、言程序j.j由于不同程序語言產(chǎn)生的目標(biāo)程序，連接裝配程序不可以把由pascal語言編譯程序和c語言編譯程序分別產(chǎn)生的目標(biāo)程序連接成一個(gè)可執(zhí)行程序19、從下列敘述中選出5條正確的敘述，并把編號按從小到大次序排列，它們是(51)、(52)、(53)、(54)、(55)。（52）處填（ ）a.解釋程序是接受源程序，將其轉(zhuǎn)換成中間代碼，然后對其解釋執(zhí)行，它并不產(chǎn)生機(jī)器代碼b.編譯程序是把高級語言書寫的程序，翻成中間代碼，然后逐條執(zhí)行，產(chǎn)生機(jī)器代碼c.就執(zhí)行速度而言，編譯程序比解釋程序快d.解釋程序是用來逐句分析和執(zhí)行源程序語句的計(jì)算機(jī)程序e.cobol和fortran語言程序通常都在商業(yè)領(lǐng)域方面應(yīng)用廣

17、范f.使用解釋程序時(shí)，因?yàn)槭侵鹁涞胤g執(zhí)行源程序的語句，所以可以逐條語句排錯g.匯編語言的功能是將匯編語言書寫的源程序翻譯成由機(jī)器指令和其他信息組成的目標(biāo)程序h.任何一種匯編語言的每一語句都能對應(yīng)一條機(jī)器語言指令i.i連接裝配程序可以把經(jīng)解釋程序產(chǎn)生的目標(biāo)程序變成可執(zhí)行的機(jī)器語言程序j.j由于不同程序語言產(chǎn)生的目標(biāo)程序，連接裝配程序不可以把由pascal語言編譯程序和c語言編譯程序分別產(chǎn)生的目標(biāo)程序連接成一個(gè)可執(zhí)行程序20、從下列敘述中選出5條正確的敘述，并把編號按從小到大次序排列，它們是(51)、(52)、(53)、(54)、(55)。（53）處填（ ）a.解釋程序是接受源程序，將其轉(zhuǎn)換成中

18、間代碼，然后對其解釋執(zhí)行，它并不產(chǎn)生機(jī)器代碼b.編譯程序是把高級語言書寫的程序，翻成中間代碼，然后逐條執(zhí)行，產(chǎn)生機(jī)器代碼c.就執(zhí)行速度而言，編譯程序比解釋程序快d.解釋程序是用來逐句分析和執(zhí)行源程序語句的計(jì)算機(jī)程序e.cobol和fortran語言程序通常都在商業(yè)領(lǐng)域方面應(yīng)用廣范f.使用解釋程序時(shí)，因?yàn)槭侵鹁涞胤g執(zhí)行源程序的語句，所以可以逐條語句排錯g.匯編語言的功能是將匯編語言書寫的源程序翻譯成由機(jī)器指令和其他信息組成的目標(biāo)程序h.任何一種匯編語言的每一語句都能對應(yīng)一條機(jī)器語言指令i.i連接裝配程序可以把經(jīng)解釋程序產(chǎn)生的目標(biāo)程序變成可執(zhí)行的機(jī)器語言程序j.j由于不同程序語言產(chǎn)生的目標(biāo)程序，

19、連接裝配程序不可以把由pascal語言編譯程序和c語言編譯程序分別產(chǎn)生的目標(biāo)程序連接成一個(gè)可執(zhí)行程序21、從下列敘述中選出5條正確的敘述，并把編號按從小到大次序排列，它們是(51)、(52)、(53)、(54)、(55)。（54）處填（ ）a.解釋程序是接受源程序，將其轉(zhuǎn)換成中間代碼，然后對其解釋執(zhí)行，它并不產(chǎn)生機(jī)器代碼b.編譯程序是把高級語言書寫的程序，翻成中間代碼，然后逐條執(zhí)行，產(chǎn)生機(jī)器代碼c.就執(zhí)行速度而言，編譯程序比解釋程序快d.解釋程序是用來逐句分析和執(zhí)行源程序語句的計(jì)算機(jī)程序e.cobol和fortran語言程序通常都在商業(yè)領(lǐng)域方面應(yīng)用廣范f.使用解釋程序時(shí)，因?yàn)槭侵鹁涞胤g執(zhí)行源

20、程序的語句，所以可以逐條語句排錯g.匯編語言的功能是將匯編語言書寫的源程序翻譯成由機(jī)器指令和其他信息組成的目標(biāo)程序h.任何一種匯編語言的每一語句都能對應(yīng)一條機(jī)器語言指令i.i連接裝配程序可以把經(jīng)解釋程序產(chǎn)生的目標(biāo)程序變成可執(zhí)行的機(jī)器語言程序j.j由于不同程序語言產(chǎn)生的目標(biāo)程序，連接裝配程序不可以把由pascal語言編譯程序和c語言編譯程序分別產(chǎn)生的目標(biāo)程序連接成一個(gè)可執(zhí)行程序22、從下列敘述中選出5條正確的敘述，并把編號按從小到大次序排列，它們是(51)、(52)、(53)、(54)、(55)。（55）處填（ ）a.解釋程序是接受源程序，將其轉(zhuǎn)換成中間代碼，然后對其解釋執(zhí)行，它并不產(chǎn)生機(jī)器代碼

21、b.編譯程序是把高級語言書寫的程序，翻成中間代碼，然后逐條執(zhí)行，產(chǎn)生機(jī)器代碼c.就執(zhí)行速度而言，編譯程序比解釋程序快d.解釋程序是用來逐句分析和執(zhí)行源程序語句的計(jì)算機(jī)程序e.cobol和fortran語言程序通常都在商業(yè)領(lǐng)域方面應(yīng)用廣范f.使用解釋程序時(shí)，因?yàn)槭侵鹁涞胤g執(zhí)行源程序的語句，所以可以逐條語句排錯g.匯編語言的功能是將匯編語言書寫的源程序翻譯成由機(jī)器指令和其他信息組成的目標(biāo)程序h.任何一種匯編語言的每一語句都能對應(yīng)一條機(jī)器語言指令i.i連接裝配程序可以把經(jīng)解釋程序產(chǎn)生的目標(biāo)程序變成可執(zhí)行的機(jī)器語言程序j.j由于不同程序語言產(chǎn)生的目標(biāo)程序，連接裝配程序不可以把由pascal語言編譯程

22、序和c語言編譯程序分別產(chǎn)生的目標(biāo)程序連接成一個(gè)可執(zhí)行程序23、comparisons were drawn between the development of television in the 20th century and the diffusion of printing in the 15th and 16th centuries. yet much had happened between. as was discussed before, it was not until the 19th century that the newspaper became the domina

23、nt pre- electronic(61), following in the wake of the pamphlet and the book and in the(62)of the periodical. it was during the same time that the communications revolution(63)up, beginning with transport, the railway, and leading on through the telegraph, the telephone, radio, and motion pictures int

24、o the 20th-century world of the motor car and the air plane. not everyone sees that process in(64). it is important to do so.it is generally recognized,(65), that the introduction of the computer in the early 20th century,(66)by the invention of the integrated circuit during the 1960s, radically cha

25、nged the process, although its impact on the media was not immediately(67). as time went by, computers became smaller and more powerful, and they became “personal” too, as well as(68), with display becoming sharper and storage(69)increasing. they were thought of, like people,(70)generations, with th

26、e distance between generations much(71).it was within the computer age that the term “information society” began to be widely used to describe the(72)within which we now live. the communications revolution has(73)both work and leisure and how we think and feel both about place and time, but there ha

27、ve been(74)view about its economic, political, social and cultural implications. “benefits” have been weighed(75)”harmful” outcomes. and generalizations have proved difficult.（61）處填（ ）a.meansb.methodc.mediumd.measure24、comparisons were drawn between the development of television in the 20th century

28、and the diffusion of printing in the 15th and 16th centuries. yet much had happened between. as was discussed before, it was not until the 19th century that the newspaper became the dominant pre- electronic(61), following in the wake of the pamphlet and the book and in the(62)of the periodical. it w

29、as during the same time that the communications revolution(63)up, beginning with transport, the railway, and leading on through the telegraph, the telephone, radio, and motion pictures into the 20th-century world of the motor car and the air plane. not everyone sees that process in(64). it is import

30、ant to do so.it is generally recognized,(65), that the introduction of the computer in the early 20th century,(66)by the invention of the integrated circuit during the 1960s, radically changed the process, although its impact on the media was not immediately(67). as time went by, computers became sm

31、aller and more powerful, and they became “personal” too, as well as(68), with display becoming sharper and storage(69)increasing. they were thought of, like people,(70)generations, with the distance between generations much(71).it was within the computer age that the term “information society” began

32、 to be widely used to describe the(72)within which we now live. the communications revolution has(73)both work and leisure and how we think and feel both about place and time, but there have been(74)view about its economic, political, social and cultural implications. “benefits” have been weighed(75

33、)”harmful” outcomes. and generalizations have proved difficult.（62）處填（ ）a.processb.companyc.lightd.form25、comparisons were drawn between the development of television in the 20th century and the diffusion of printing in the 15th and 16th centuries. yet much had happened between. as was discussed bef

34、ore, it was not until the 19th century that the newspaper became the dominant pre- electronic(61), following in the wake of the pamphlet and the book and in the(62)of the periodical. it was during the same time that the communications revolution(63)up, beginning with transport, the railway, and lead

35、ing on through the telegraph, the telephone, radio, and motion pictures into the 20th-century world of the motor car and the air plane. not everyone sees that process in(64). it is important to do so.it is generally recognized,(65), that the introduction of the computer in the early 20th century,(66

36、)by the invention of the integrated circuit during the 1960s, radically changed the process, although its impact on the media was not immediately(67). as time went by, computers became smaller and more powerful, and they became “personal” too, as well as(68), with display becoming sharper and storag

37、e(69)increasing. they were thought of, like people,(70)generations, with the distance between generations much(71).it was within the computer age that the term “information society” began to be widely used to describe the(72)within which we now live. the communications revolution has(73)both work an

38、d leisure and how we think and feel both about place and time, but there have been(74)view about its economic, political, social and cultural implications. “benefits” have been weighed(75)”harmful” outcomes. and generalizations have proved difficult.（63）處填（ ）a.gatheredb.speededc.workedd.picked26、com

39、parisons were drawn between the development of television in the 20th century and the diffusion of printing in the 15th and 16th centuries. yet much had happened between. as was discussed before, it was not until the 19th century that the newspaper became the dominant pre- electronic(61), following

40、in the wake of the pamphlet and the book and in the(62)of the periodical. it was during the same time that the communications revolution(63)up, beginning with transport, the railway, and leading on through the telegraph, the telephone, radio, and motion pictures into the 20th-century world of the mo

41、tor car and the air plane. not everyone sees that process in(64). it is important to do so.it is generally recognized,(65), that the introduction of the computer in the early 20th century,(66)by the invention of the integrated circuit during the 1960s, radically changed the process, although its imp

42、act on the media was not immediately(67). as time went by, computers became smaller and more powerful, and they became “personal” too, as well as(68), with display becoming sharper and storage(69)increasing. they were thought of, like people,(70)generations, with the distance between generations muc

43、h(71).it was within the computer age that the term “information society” began to be widely used to describe the(72)within which we now live. the communications revolution has(73)both work and leisure and how we think and feel both about place and time, but there have been(74)view about its economic

44、, political, social and cultural implications. “benefits” have been weighed(75)”harmful” outcomes. and generalizations have proved difficult.（64）處填（ ）a.conceptb.dimensionc.effectd.perspective27、comparisons were drawn between the development of television in the 20th century and the diffusion of prin

45、ting in the 15th and 16th centuries. yet much had happened between. as was discussed before, it was not until the 19th century that the newspaper became the dominant pre- electronic(61), following in the wake of the pamphlet and the book and in the(62)of the periodical. it was during the same time t

46、hat the communications revolution(63)up, beginning with transport, the railway, and leading on through the telegraph, the telephone, radio, and motion pictures into the 20th-century world of the motor car and the air plane. not everyone sees that process in(64). it is important to do so.it is genera

47、lly recognized,(65), that the introduction of the computer in the early 20th century,(66)by the invention of the integrated circuit during the 1960s, radically changed the process, although its impact on the media was not immediately(67). as time went by, computers became smaller and more powerful,

48、and they became “personal” too, as well as(68), with display becoming sharper and storage(69)increasing. they were thought of, like people,(70)generations, with the distance between generations much(71).it was within the computer age that the term “information society” began to be widely used to des

49、cribe the(72)within which we now live. the communications revolution has(73)both work and leisure and how we think and feel both about place and time, but there have been(74)view about its economic, political, social and cultural implications. “benefits” have been weighed(75)”harmful” outcomes. and

50、generalizations have proved difficult.（65）處填（ ）a.indeedb.hencec.howeverd.therefore28、comparisons were drawn between the development of television in the 20th century and the diffusion of printing in the 15th and 16th centuries. yet much had happened between. as was discussed before, it was not until

51、 the 19th century that the newspaper became the dominant pre- electronic(61), following in the wake of the pamphlet and the book and in the(62)of the periodical. it was during the same time that the communications revolution(63)up, beginning with transport, the railway, and leading on through the te

52、legraph, the telephone, radio, and motion pictures into the 20th-century world of the motor car and the air plane. not everyone sees that process in(64). it is important to do so.it is generally recognized,(65), that the introduction of the computer in the early 20th century,(66)by the invention of

53、the integrated circuit during the 1960s, radically changed the process, although its impact on the media was not immediately(67). as time went by, computers became smaller and more powerful, and they became “personal” too, as well as(68), with display becoming sharper and storage(69)increasing. they

54、 were thought of, like people,(70)generations, with the distance between generations much(71).it was within the computer age that the term “information society” began to be widely used to describe the(72)within which we now live. the communications revolution has(73)both work and leisure and how we

55、think and feel both about place and time, but there have been(74)view about its economic, political, social and cultural implications. “benefits” have been weighed(75)”harmful” outcomes. and generalizations have proved difficult.（66）處填（ ）a.broughtb.followedc.stimulatedd.characterized29、comparisons w

56、ere drawn between the development of television in the 20th century and the diffusion of printing in the 15th and 16th centuries. yet much had happened between. as was discussed before, it was not until the 19th century that the newspaper became the dominant pre- electronic(61), following in the wak

57、e of the pamphlet and the book and in the(62)of the periodical. it was during the same time that the communications revolution(63)up, beginning with transport, the railway, and leading on through the telegraph, the telephone, radio, and motion pictures into the 20th-century world of the motor car and the air plane. not everyone sees that process in(64)