单项选择题


Passage Two
Questions 30 to 32 are based on the passage you have just heard.

A．It’s similar to playing notes on a piano.
B．It requires a night’s sleep.
C．It’s similar to the way a computer stores information.
D．It requites no sleep.
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单项选择题
A．Unemployment.B．Family breakup.C．Mental problems,D．Drinking,
A．Unemployment.
B．Family breakup.
C．Mental problems,
D．Drinking,
单项选择题
A．Regular service,B．Overnight express.C．Same day delivery.D．Priority service.
A．Regular service,
B．Overnight express.
C．Same day delivery.
D．Priority service.
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