单项选择题
水泥砂浆采用的水泥强度等级不宜（），水泥石灰混合砂浆采用的水泥强度等级不宜（）。
A.大于32．5级；大于32．5级
B.大于32．5级；大于42．5级
C.大于42．5级；大于42．5级
D.大于42．5级；大于32．5级
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