单项选择题

三相四线制供电方式中，中性线上可以接熔断器和开关 A. 对 B. 错

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单项选择题

具有复伞形花序、双悬果的是
A、菊科
B、石蒜科
C、五加科
D、伞形科
E、夹竹桃科

单项选择题

What did Confucius do when he was surrounded by a crowd of people and mistaken as a criminal

A．He talked to his students and asked them to go
B．He tried to explain that he was not the criminal
C．He was scared and tried to escape.
D．He just sat singing and playing a zither