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问题 单项选择题

高速道岔滚轮一般情况下，靠近尖轨轨底的辊轮（里侧辊轮）应高出滑床台板表面2～3mm，外侧辊轮高出3～4mm，里侧辊轮与尖轨轨底应留1mm的间隔，用（）厚的塞尺定位。

A.1㎜

B.2㎜

C.0mm

D.1.5㎜

答案

参考答案：A

完形填空

完形填空(共10小题，每小题1分)

The Wolf Is Coming

A boy looked after a lot 1 . One day he wanted  2  have some fun(开玩笑). “The wolf  3   coming! ” The peasants came to help    4  .Because there 5  no wolf ,they went back . The next day the boy  6   the same thing again. The peasants  7   up to him and saw no wolf, so they 8   very angry.   9 third day, the wolf really came. The boy cried 10  help , no one came .

小题1:A.of sheeps   B. of sheep     C. for sheep   

小题2:A. of        B. to           C. for

小题3:A .is        B. is going to  C. was

小题4:A. him      B. them        C. their  

小题5:A. were     B. is not       C. was     

小题6:A. does      B. do         C. did

小题7:A. stood     B. came        C. come    

小题8:A. are      B. become      C. were   

小题9:A. The     B. An         C. A      

小题10:A. to       B. for           C. of             
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判断题

当电桥不平衡时，可以调节被测电阻使其平衡。
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