A.1s
B.2s
C.3s
D.4s
A.1
B.2
C.3
D.4
开始考试点击查看答案A.1%
B.1%
C.1%
D.1%
开始考试点击查看答案A.1%
B.1%
C.1_5%
D.1%
开始考试点击查看答案A.1%
B.1%
C.1%
D.1%
开始考试点击查看答案A.12h
B.24h
C.48h
D.6h
开始考试点击查看答案A.100h
B.500h
C.800h
D.1000h
开始考试点击查看答案A.不能
B.不必
C.可能
D.仍能
开始考试点击查看答案A.1min
B.5min
C.2h
D.30min
开始考试点击查看答案A.25%CH4
B.30%CH4
C.35%CH4
D.40%CH4
开始考试点击查看答案A.无滴水
B.无设备
C.无电压
D.无矿压
开始考试点击查看答案长理培训客户端 资讯,试题,视频一手掌握
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