采用石灰桩法时,如使用机械成孔,管外投料,孔壁不缩孔时,桩长不宜超过()。
A.6m
B.8m
C.10m
D.12m
参考答案:B
______the Internet is of great help, I don't think it's a food idea to spend too much time on it. [ ]
A. If
B. While
C. Because
D. As
手机电视业务中直播类节目的资费结构模式为()
A.nM/首
B.x元/月、天(单频道)
C.x元/月
D.x元/月、天(多频道)
E.nM/首+¥