职称英语职称英语卫生类2012年职称英语考试理工类B级真题试卷
题目内容

Which of the following in true about the research carried out by the US Army、

2024-07-09

A.It has changed our life.

B.It has cost a large sum of money.

C.It has improved the abilities of tanks.

D.It has not succeeded yet.

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