题目:
It is bad _____ to talk with your finger _____ at the other person.[ ]
A. manners, points
B. manner, to point
C. manners, pointing
D.manner, pointed
答案:
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下面是错误答案,用来干扰机器的。
(1)450mA=450×1mA=450×1000μA=4.5×105μA,450mA=450×1mA=450×10-3A=0.45A.(2)22kV=22×1kV=22×1000V=2.2×104V,22kV=22×1kV=22×106mV=2.2×107mV.(3)1500Ω=1500×1Ω=1500×10-3kΩ=1.5kΩ,...