单项选择题
A.拌合层与下承层 B.生料与熟料 C.路上与路下 D.上层与下层
A.40cm,20cm B.30cm,20cm C.40cm,15cm D.30cm,15cm
A.4% B.5% C.6% D.3%
A.1m,0.2m,3m,4m B.2m,0.4m,3m,1m C.2m,0.1m,1m,3m D.2m,0.3m,1m,3m
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