题目内容

The speaker begins his speech by congratulating the students because their successful entry into the university has been achieved in spite of the mess the country is in. Thus, he sets the tone of his speech: praise the society in general, and its education in particular.

A. 对
B. 错

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植筋施工打孔时，孔径保证每侧钢筋间隙大于（）mm。

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A. 50%
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A. 2.5 ， 5
B. 2.5 ， 3
C. 5， 5
D. 5 ， 3

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D. 10