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【单选题】
设计混凝土配合比时，选择水胶比的原则是()A.
混凝土强度的要求
B.
小于最大水胶比
C.
混凝土强度的要求与最大水胶比的规定
D.
大于最大水胶比
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【单选题】A: You seem to have a lot of work to do in your office. You've always been working overtime. B: ______
A.
You are right, but don't you know the meaning of work?
B.
Sorry, I don't think so. I get overpaid overwork, you know.
C.
That's right. All work and no play makes Jack a dull boy.
D.
That's right, but the work is interesting. I don't mind some extra hours at all
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