南方地区温暖多雨,宜在冬初树木停土生长后至翌春发芽前植树造林。
参考答案:对
在电容器组回路上工作时应将电容器()。
A、放电
B、断开
C、逐个放电并接地
D、隔离
By ______ computation, he estimated that the repairs on the house would cost him $2,000.
A. coarse B. rude C. crude D. rough