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【单选题】
在下列电流路径中,最危险的是 ( )A.
左手-胸部
B.
左手-双脚
C.
右手-双脚
D.
左手-右手
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皮皮学刷刷变学霸
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【简答题】( )是我国现存最早的天文历算和数学著作。
【简答题】A．When the season changes. B．When the food colour changes. C．When they move to different places. D．When they are attracted by different smells.
【简答题】信息层与控制层、设备层相比,更重要的功能在于( )。
【判断题】In Britain, changes of Government do not involve changes in departmental staff, who continue to carry out their duties whichever party is in power.()
A.
正确
B.
错误
【简答题】A．Changes in children's rearing. B．Changes in men's and women's roles. C．Changes in men's role in family life. D．Changes in women's role in society.
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