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【单选题】
按照《混凝土结构工程施工规范》GB50666-2011的规定，混凝土制备时，未经处理的海水（）用于钢筋混凝土结构和预应力混凝土结构中混凝土的拌制和养护。A.
可以
B.
适宜
C.
适合
D.
严禁
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