题目内容

If they mean to you（）they mean to me, they may perhaps be helpful also to our sons for their guidance and inspiration.

A. who
B. what
C. that
D. just as

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金属薄板、船体、飞机外壳等常会因剧烈的振动辐射较强的噪声，采取以下哪种方法可有效降噪（）？

A. 打孔
B. 涂抹阻尼材料
C. 加厚
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A. 5分贝
B. 10分贝
C. 20分贝
D. 40分贝

The TTS run will demonstrate （）the car can take curves as fast as a human driver—without driving off a cliff.

A. as
B. that
C. when
D. whether

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A. succeed
B. proceed
C. exceed
D. excess