某矿井下一掘进中的岩巷,配风量为1152m3/min,风速为1.5m/s,求巷道断面积是多少?()
A.12.8m2
B.14m2
C.13.2m2
D.14.8m2
参考答案:A
There______ an interesting cartoon on CCTV 7 at six this evening. [ ]
A. is going to have
B. will have
C. is going to be
D. will going to have
柴油发电机组开机前,应检查控制设备各开关是否(),变阻器的手柄是否已转到合适位置;熔断器是否完好。