单项选择题


Questions 13 to 15 are based on the conversation you have just heard.

A．One dollar.
B．30 cents.
C．60 cents.
D．90 cents.
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单项选择题
A．Incompetent teaching staff.B．Understaffed faculty.C．Insufficient budget.D．Unmotivated students.
A．Incompetent teaching staff.
B．Understaffed faculty.
C．Insufficient budget.
D．Unmotivated students.
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