单项选择题


Questions 23 to 25 are based on the conversation you have just heard.

A．Eighteen months.
B．Six months.
C．Twelve months.
D．Fifteen months.
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单项选择题
A．In a library.B．In a court.C．In a hospital.D．In a restaurant kitchen.
A．In a library.
B．In a court.
C．In a hospital.
D．In a restaurant kitchen.
单项选择题
The scale of the energy is ______.
A．seven, eight or nine
B．three to six
C．ten or higher
D．one to ten
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