问题
单项选择题
下列表达式的值为false的是( )。
A．1＜3&&5＜7
B．!(2＞4)
C．3&0&&1
D．!(5＜8)||(2＜8)
答案
参考答案：C
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下列表达式的值为false的是( )。
A．1＜3&&5＜7
B．!(2＞4)
C．3&0&&1
D．!(5＜8)||(2＜8)
参考答案：C
| 完形填空 | |||
| The faster way to travel in a city is by subway. In many big cities, there 1 usually more than one subway lines. How to travel by 2 ? Here is something to know 3 you travel by subway. First, you should choose the right line. If you don't, you will have to get off and take 4 one. Second, you need some coins (硬币) to buy your 5 . In 6 of the ticket machines, only coins are used. You can change (换) 7 at the ticket office. If you have a prepaid (预付款) card, you can just go ahead. After you buy the ticket, you should 8 the train behind a yellow line. You 9 stand too close to the yellow line. It's 10 . | |||
| ( )1. A. have ( )2. A. subway ( )3. A. after ( )4. A. the next ( )5. A. food ( )6. A. most ( )7. A. money . ( )8. A. look for ( )9. A. must ( )10.A. dangerous | B. has B. bus B. before B. other B. book B. all B. coins B. get off B. mustn't B. safe | C. are C. train C. until C. the other C. ticket C. each C. subway C. get on C. have to C. fun | D. is D. bike D. as soon as D. another D. map D. few D. ticket D. wait for D. don't have to D. OK |