若铺填完各层反滤料后未能达到(),将上层填料拆除,再按层次加厚。
A.截断渗流
B.某固定高度
C.制止涌水带沙的效果
D.堵住出水
参考答案:C
—Mum, is the pair of gloves mine?
—Yes. You have to wear another pair.
A.washing
B.have washed
C.having washed
D.being washed
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