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题目:
单选题
()所列的黏性土不宜作为土石坝的防渗体填筑料。
A
高塑性冲积黏土,塑限含水量Wp=26%,液限含水量W1=47%
B
在料场为湿陷性黄土
C
掺入小于50%比例的砾石的粉质黏土
D
红黏土
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