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导入数据的命令是（）。

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保证Oracle正常运行，只需启动监听服务。

A. 对
B. 错

Which one(s) of the following questions is (are) taboo(s) for Westerners in their conversations?

A. How are you doing?
B. How much do you make for a living?
C. How old are you?
D. Are you married?
E. What is your religion?
F. Who are you going to vote for?
G. How much do you weigh?
H. What's your name?

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26、调节电桥平衡时,若检流计指针向标有“-”的方向偏转时,说明( )。

A. 通过检流计电流大、应增大比较臂的电阻
B. 通过检流计电流小、应增大比较臂的电阻
C. 通过检流计电流小、应减小比较臂的电阻
D. 通过检流计电流大、应减小比较臂的电阻

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23、一般三端集成稳压电路工作时,要求输入电压比输出电压至少高( )V。

A. 2
B. 3
C. 4
D. 1.5

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