Linesdrawnthroughpointsontheearthhavingthesameatmosphericpressureareknownas().
A. isothermal
B. millibars
C. isobars
D. seismics
Jimissorry()soimpolitetoyourguestlastSaturday.
A. tobe
B. being
C. havingbeen
D. tohavebeen
Itwasessentialthattheapplicationforms()backbeforethedeadline.
A. mustbesent
B. besent
C. wouldbesent
D. weresent
根据DL5009.1—2014《电力建设安全工作规程第1部分:火力发电》4.5.3几种线路同杆架设时,高压线应位于低压线(),电力线应位于弱电线()
A. 上方;上方
B. 上方;下方
C. 下方;下方
D. 下方;上方