电缆线插头里有雪或冰屑会造成（）
A、电缆线阻值大
B、电缆线阻值小
C、检波器开路
D、电缆线开路
参考答案：B
------ Do you have enough to ______ all your daily expenses?
------ Oh yes, enough and to spare.
A cover B spend C fill D offer
股道号码信号六道夜间如何显示？
