35kV带电设备带电作业,人身与带电体安全距离小于0.6m时,不得进行。
参考答案:原题中不得进行,应改为:应采取可靠的绝缘隔离措施后,方可进行。
a,b∈R,下列命题中正确的是: ( )
A.若a>b, 则a2>b2
B.若 ∣a∣>b ,则a2>b2
C.若 a>∣b∣, 则a2>b2
D.若 a≠∣b∣, 则a2≠b2
Lucy had an unusual ______ for learning languages when she was a baby.
A.quality
B.gift
C.purpose
D.sense