单项选择题

A．Always.
B．Once.
C．Twice.
D．Three times.
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单项选择题
A．Both a final examination and a term paper.B．Only a final examination.C．Only a term paper.D．Either a final examination or a term paper.
A．Both a final examination and a term paper.
B．Only a final examination.
C．Only a term paper.
D．Either a final examination or a term paper.
单项选择题
A．To the Nile River.B．To the Museum of Natural History.C．To Colorado.D．To Arizona.
A．To the Nile River.
B．To the Museum of Natural History.
C．To Colorado.
D．To Arizona.
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