用电普查工作应填写哪些业务工作单?
参考答案:
(1)用电检查工作单
(2)用电检查结果通知书
(3)电力营销业务工作单
一个物体做自由落体运动,取g=10m/s2,则第5s末物体速度的大小为( )
A.25 m/s
B.50 m/s
C.100 m/s
D.125 m/s
翻译句子。
1. Whether he succeeds or fails, he had to try his best.
2. I couldn't decide whether to do it