單項選擇題曲線孔道灌漿施工時。灌滿漿的標(biāo)志是:()

A.自高點(diǎn)灌入,低處流出漿
B.自高點(diǎn)灌入,低處流出漿持續(xù)1min
C.自最低點(diǎn)灌入,高點(diǎn)流出漿與氣泡
D.自最低點(diǎn)灌入,高點(diǎn)流出漿


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