北京西站到拉萨的火车T27次每日开行，全程4046千米．如果进藏火_爱下问搜题

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问题解答题

北京西站到拉萨的火车T27次每日开行，全程4046千米．如果进藏火车每小时行75千米，要行几小时？

答案

4046÷75=53

71

75

（小时）；

答：要行53

71

75

小时．

完形填空

完形填空。

     The generation gap(代沟) has become a serious problem. I read a   l     about it in the newspaper.
Some children have killed themselves after   2     with parents. I think this is because they  seldom(极少地)  have a talk with each other.  Parents now   3   more time in the office,   4      they don't have much
time to stay with their children.  As time passes, they both feel that they don't h ave the   5    topic to talk
about. I want to tell parents to spend more time with your   6    , get to know them and .   7    them.
And for children, show your   8   to your parents. They are the people who love you. So   9      them
your thoughts. In this way, you       10   understand each other better.

( )1. A. message
( )2. A. talking
( )3. A. spend
( )4. A. because
( )5. A. interesting
( )6. A. business
( )7. A. like
( )8. A. interest
( )9. A. tell
( )10.A. can

B. call
B. arguing
B. stay
B. if
B. same
B. children
B. look after
B. secret
B. ask
B. should

C. report
C. fighting
C. work
C. but
C. true
C. work
C. understand
C. trouble
C. answer
C. must

D. letter
D. playing
D. have
D. so
D. good
D. office
D. love
D. feelings
D. say
D. will

单项选择题

下列哪一项是发现血小板无力症的最简便试验（）。

A.血涂片上血小板分散不堆集

B.血小板聚集试验减低，但对Ristocetin有反应

C.血块收缩不良

D.单克隆抗体（J₁₅，SW₂₁）证实缺乏GPⅡb/Ⅲa

E.血小板膜特异性抗原PIA1的免疫学测定缺如或减少