A.1m3 B.1.2m3 C.6m3 D.5m3
A.1.5倍 B.2.0倍 C.1.5-2.0倍 D.3倍
A.高級(jí)隊(duì)長(zhǎng)B.安全監(jiān)督C.現(xiàn)場(chǎng)總監(jiān)D.司鉆