当前位置：在线题库搜索＞[单选题]下列各项不是预防性灌浆作用的是_________。的答案是什么？
问题：
[单选题]下列各项不是预防性灌浆作用的是_________。
A、泥浆对煤起阻化作用
B、包裹采空区浮煤，隔绝空气
C、冷却作用
D、填充作用
参考答案：
A
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