试题与答案

掘进机的切割头和切割臂（）用作托举棚梁等。A、可以 B、不得 C、必须 D、必要时可以

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题型：单项选择题

题目：

掘进机的切割头和切割臂（）用作托举棚梁等。

A、可以

B、不得

C、必须

D、必要时可以

答案：

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     "Frank!" I cried in astonishment. He couldn't   2  , as I knew, but all the time   3   his foot against mine.
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regulars were Mrs. West and her son Frank. 
       7   wartime problems, we shelter-dwellers got to   8   each other very well. Frank West   9   me because
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75, was a strong, capable woman, as she had to be, of course, because Frank  14  on her entirely. He needed
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stood beside Frank and  19  my right foot against his. They were about the same size. That night, then, I took
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