电机、设备以及电缆等应尽可能不受灰尘、有害气体和()的损害
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标准电压-48V的电信设备,其受电端子电压变动范围为()。
MV ATLANTIC 0200UTC POSN 33.55N 127.22E COURSE 088 DEGS SPEED 12.5 KTS SAILOR FELL FROM MAST SERIOULY WOUNDED AT HEAD. This cable says that().
A. the wounded had nothing wrong with his head
B. the injury was not serous
C. the injury happened at the mast head
D. a sailor injured at his head
金融业的()和内在的(),从客观上需要审慎监管。
A. 高风险性;不稳定性
B. 低风险性;不稳定性
C. 高风险性;稳定性
D. 低风险性;稳定性
-Can you turn down the radio, please? -()
A. I’m sorry, I didn’t realize it was that loud
B. Please forgive me
C. I’ll keep it down next time