全矿机电设备综合完好率≥()
A、85%
B、90%
C、95%
参考答案:B
Don’t say any more; we all believe the facts than your words. What you have explained doesn’t make _____.
A.sense
B.fun
C.use
D.meaning
这个路面标记是什么标线?()
A.禁驶区
B.网状线
C.导流线
D.中心圈