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I went to Beijing this National holiday, and it was an interesting experience of my life. My friends told us that taking the “hard 36 ”to Beijing would be really terrible. So we didn’t know what to 37 . But we were pleasantly surprised when we finally boarded the 38 , which was relatively modern and 39 . During the 14 - hour ride we ate peanuts and talked. It was not 40 at all. It was morning when we arrived. We stepped out of the railway station, having sat in hard seats and not getting much 41 . However, We had energy, First we tried to get return tickets to Shanghai, but the tickets seller 42 us that tickets would not be on 43 for another two days. We were a little worried about getting 44 , but we made up our minds to 45 for the hotel to put our bags down. After fighting our way 46 the“ gypsy” taxi drivers that tried to 47 us one hundred yuan for the ride, we found a taxi and it 48 cost us thirty yuan to get 49 we had planned to go. When we reached the hotel, there was a window for airplane and train tickets. 50 the man behind the counter could get tickets that day, which we 51 . The most important lesson about China I ever 52 , is to get someone to do your work for you, and it seems to work out much 53 . We were not able to get tickets, but the 54 agents(代理)could. While in Beijing we saw a lot of places of interest, most of which were very 55 . It was fun to be with thousands of people in one place, There aren’t any words to describe it. 36.A. chair             B. bed                 C. seat                 D. bench 37.A. provide          B. expect              C. happen               D. think 38.A. plane             B. bus                 C. ship                 D. train 39.A. quick             B. clean               C. simple               D. long 40.A. bad               B. good               C. easy                 D. hard 41.A. trouble           B. food               C. sleep                 D. help 42.A. promised          B. informed            C. advised              D. persuaded 43.A. time             B. show               C. duty                 D. sale 44.A. behind            B. out                 C. through              D. back 45.A. start              B. ask                 C. look                 D. pay 46.A. towards           B. into                 C. across               D. past 47.A. offer              B. charge              C. bargain              D. share 48.A. even              B. still                C. also                 D. only 49.A. what             B. which              C. where               D. how 50.A. Somehow          B. However            C. Therefore            D. Otherwise 51.A. wouldn't          B. couldn't             C. shouldn't             D. needn't 52.A. learned            B. taught              C. offered               D. heard 53.A. harder             B. earlier              C. later                 D. easier 54.A. business           B. transport            C. travel                D. hotel 55.A. interesting         B. crowded             C. famous              D. noisy
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参考答案:
举一反三
【判断题】职业是人们在社会中所从事的,并以此为生的具有特定职责的活动。
A.
正确
B.
错误
【单选题】现在要用一个四位二进制加法器实现余三码到 8421BCD码的转换,将A3A2A1A0端与余三码相连接,CI接“0”,则在B3B2B1B0 端加上二进制数( )便可。
A.
1100
B.
1101
C.
0011
D.
1011
【简答题】要求 做一个8421BCD码转换成余3码,的真值表,卡诺图,试画出电路。 本周上课内容练习,尽早完成, 提示,输入4位变量A3,A2,A1,A0,固定加上0011,得到输出C3,C2,C1,C0.
【单选题】用74283构成将8421BCD码转换为余3码的码制转换电路如下。下列说法正确的是()
A.
B3B2B1B0=1100
B.
B3B2B1B0=0011
C.
B3B2B1B0=0000
D.
B3B2B1B0=0110
【单选题】职业是人们在社会中所从事的,并以此为生的具有特定职责的()
A.
专门性工作
B.
活动
C.
专门性活动
D.
特殊活动
【单选题】《我的母亲》的作者是?
A.
鲁迅
B.
巴金
C.
胡适
D.
郭沫若
【简答题】完成下列各数的转换。 (1)(73.26)10=(?)8421码 (2)(31.67)10=(?)余3BCD码 (3)(465)10=(?)2421BCD码 (4)(1101 1010 0011)631-1BCD码=(?)10 (5)(1000 0101 1001 0111)8421BCD码=(?)10
【单选题】职业是人们在社会中所从事的,并以此为生的()专门性活动。
A.
具有特定职责
B.
人类社会
C.
具有一定社会价值
D.
具有一定职责
【单选题】用加法器将余3码A3A2A1A0转换为8421BCD码,只需要用A3A2A1A0加()就可以实现转换
A.
0011
B.
1010
C.
1101
D.
0001
【单选题】在四位二进制加法电路74LS283的一组数据输入端A3A2A1A0输入8421BCD码,另一组数据输入端B3B2B1B0输入二进制代码 ( ),可在输出端S3S2S1S0得到8421BCD码对应的余3码
A.
0001
B.
0010
C.
0011
D.
0000
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