电缆一芯或数芯对地绝缘电阻或芯与芯之间绝缘电阻低于(),称为低电阻接地或短路。
A.10Ω
B.100Ω
C.10kΩ
D.100kΩ
参考答案:D
—I may go to the market this afternoon.
—Could you please buy some fruit for me you are there?
A.since
B.if
C.while
D.fits
和平与发展是_____的。和平是发展的_____,发展则是维护和平的_____。