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当前学科：公路水运试验检测人员继续教育
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当塌落度大于70mm时，用人工成型。非圆柱体试件以及直径小于等于150mm的试件成型时分次装模，直径大于150mm的圆柱体试模，分（）层装模
A
1，2
B
2，2
C
1，3
D
2，3
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