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【单选题】

In mixing concrete, one of the desires the amateur must resist is to ______.
A.break off a corner to see if the "green" has gone

B.leave the form on too long
C.strip off the forms a day after the concrete has properly hardened
D.use too much water
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根据网考网移动考试中心的统计,该试题:

4%的考友选择了A选项

37%的考友选择了B选项

1%的考友选择了C选项

58%的考友选择了D选项

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