【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