单项选择题
A.坐浆B.灌浆C.镶嵌D.勾缝
A.3~5mmB.4~8mmC.6~10mmD.8~12mm
A.初凝B.中凝C.终凝D.表面干燥
A.0.6~1.0B.0.7~1.1C.0.8~1.2D.0.9~1.3
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