题目

His mother had thought it would be good for his character to _____from home and earn some money on his own.   A. run away           B. take away          C. keep away         D. get away 答案：D 解析: 因为get away from是“离开(某地)”之意；而其它选项的意思是：run away突然离开或逃走；take away取走；keep away不靠近。对生活中一些用电常识，正确说明的是 A．保险丝可以用粗铜丝代替 B．电能表的铝盘转得越快，说明正在工作的用电器总功率越大 C．用测电笔接触家庭供电导线．若氖管发光，则接触的是火线，否则一定是零线 D．电器设备失火时，先用水灭火，再切断电源