问题
选择题
下列做法中，符合安全用电常识的是： [ ]
A．用湿手接触照明电路中的开关
B．将洗衣机的金属外壳接地
C．攀爬高压输电铁塔
D．将触电的人直接用手拉离电源
答案
答案：B
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下列做法中，符合安全用电常识的是： [ ]
A．用湿手接触照明电路中的开关
B．将洗衣机的金属外壳接地
C．攀爬高压输电铁塔
D．将触电的人直接用手拉离电源
答案：B
rned around and said, “sorry. The bus has been broken down. Please get off and help push it.” When he heard this, Li Hua and the other passenger got off the bus. They worked hard together, pushed the bus forward. Soon the bus was running again. Both the passengers were smiling and the sun was shining.