题目内容

The U.S. Rubber Company is making tests of using the elastic skin of a dolphin for beats and submarine hulls.

A. Y
B. N
C. NG

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A．beB．haveC．existsD．happen

A. be
B. have
C. exists
D. happen

公路-Ⅱ级荷载在悬臂根部每米宽板条上产生的剪力最接近的数值是()。

A. 23kN
B. 32kN
C. 16kN
D. 21kN

A．happenedB．usedC．likedD．came

A. happened
B. used
C. liked
D. came

【B6】

A. anything
B. how
C. nothing
D. some