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【单选题】
电位法检测也叫做电位探针法，它可以用来测定导电材料上表面裂纹的（）。A.
性质
B.
宽度
C.
深度
D.
成分
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反馈参考答案：
举一反三
【单选题】The president was on a tight ______ so he didn’t visit the Forbiddern City entirely.
A.
budget
B.
program
C.
schedule
D.
deadline
【简答题】HTML语言的最新版本是
【简答题】At the _1_, the sixty-year-old company president told the forty-eight-year-old _2_ that the fifty-one-year-old _3_ had meant much to the company and would be missed and would be hard to _4_. The widow...
【单选题】“The president made a brilliant decision, didn’t he?” “Yes, he did. I don’t know what I would have done if I____to make that decision.”
A.
were
B.
had had
C.
have had
D.
had
【简答题】感觉阈限与感受性的大小的关系是（ ）。
【单选题】At college, Barack Obama didn’t know that he the first black president of the United States of America.
A.
was to become
B.
becomes
C.
is to become
D.
became
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