采煤机的甲烷传感器报警浓度、断电浓度、复电浓度分别是()
A.≥1.0%,≥1.5%,<1.0%
B.≥1.5%,≥1.5%,<1.5%
C.≥0.5%,≥1.0%,<0.5%
D.≥1.5%,≥2.0%,<1.5%
A.≥1.0%,≥1.5%,<1.0%
B.≥1.5%,≥1.5%,<1.5%
C.≥0.5%,≥1.0%,<0.5%
D.≥1.5%,≥2.0%,<1.5%
第2题
A.A.≥1.0%,≥1.5%,<1.0%
B.B.≥1.5%,≥1.5%,<1.5%
C.C.≥0.5%,≥1.0%,<0.5%
D.D.≥1.5%,≥2.0%,<1.5%
第3题
A.A.>=1.0%,>=1.5%,>1.0%
B.B.>=0.5%,>=0.5%,<0.5%,
C.C.>=1.0%,>=1.5%,<1.0%
D.D.>=1.0%,<1.0%,>=1.5%,
第4题
A.≥1.0%,≥1.5%,<1.0%
B.≥1.5%,≥1.5%,<1.0%
C.≥0.5%,≥1.0%,<0.5%
D.≥1.5%,≥2.0%,<1.5%
第5题
A.≥0.5%,≥0.5%,<0.5%
B.≥1.0%,≥1.0%,<1.0%
C.≥1.5%,≥1.5%,<1.5%
D.≥1.5%,≥2.0%,<1.5%
第6题
A.≥1.0%,≥1.5%,<1.0%
B.≥1.5%,≥1.5%,<1.5%
C.≥2.5%,≥2.5%,<2.5%
D.≥1.5%,≥2.0%,<1.5%
第7题
A.A.≥0.5%,≥0.5%,<0.5%
B.B.≥1.5%,≥1.5%,<1.5%
C.C.≥1.0%,≥1.0%,<1.0%
D.D.≥1.5%,≥2.0%,<1.5%
第8题
A.≥0.5%,≥0.5%,<0.5%
B.≥1.5%,≥1.5%,<1.5%
C.≥1.0%,≥1.0%,<1.0%
D.≥1.5%,≥2.0%,<1.5%
第9题
A.≥0.5%CH4,≥0.5%CH4,<0.5%CH4
B.≥1.5%CH4,≥1.5%CH4,<1.5%CH4
C.≥1.0%CH4,≥1.0%CH4,<1.0%CH4
D.≥1.5%CH4,≥2.0%CH4,<1.5%CH4
第10题
A.≥1.0%,≥1.5%,<1.0%
B.≥1.5%,≥1.5%,<1.5%
C.≥0.5%,≥0.5%,<0.5%
D.≥1.5%,≥2.0%,<1.5%
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