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【单选题】
当需求增加的幅度大于供给增加的幅度时( )A.
均衡价格将上升，均衡数量将减少
B.
均衡价格和均衡数量都将上升
C.
均衡价格将下降，均衡数量将增加
D.
均衡价格和均衡数量都将下降
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反馈参考答案：
举一反三
【判断题】The ignition system is designed to convert the 12 volts from the battery into 5,000 to 40,000 volts needed to jump the gap of a spark plug.
A.
正确
B.
错误
【单选题】If you bein time for the early bus ,be sure to get up before five o’clock in the morning.
A.
are to
B.
are about to
C.
are going to
D.
are due to
【单选题】If 12 volts are being applied to a resistance of 3 ohms,______________ amperes will flow.
A.
12
B.
3
C.
4
D.
36
【单选题】Which of the following statements is true?
A.
At 150 volts, the learner began to complain about the pain.
B.
At 300 volts, the learner complained about his heart condition.
C.
At 180 volts, the learner demanded that the experiment be halted.
D.
The position of 370 volts had been marked 'Danger: Severe Shock.'
【简答题】A．60 volts. B．110 volts. C．220 volts. D．240 volts.
【单选题】How many volts does a power supply’s 4-pin Molex connector carry to internal devices?（）
A.
2.5 volts
B.
5 volts
C.
6 volts
D.
15 volts
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