当正压nZ型电气设备压力低于规定值时,设备应发出声光报警,但()断电。
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董卓军队和孙坚交战于阳人的时候,董卓军的两位将领发生了不和谐,导致这次战斗大败。请问是两位?
When there are small differences between the heights of two successive high tides or two successive low tides,the tides are called().
A. Diurna
B. Semi-diurnal
C. Solar
D. Mixed