单项选择题

The shuttle flies to the earth at ______ an hour after reentering the atmosphere.

A．7,000
B．17,000
C．27,000
D．70,000
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单项选择题
What does the man want the woman to do
A．Meet his anthropology teacher.
B．Lend him her magazine when she’s clone with it.
C．Come over to his house after class.
D．Help him study for an anthropology test.
单项选择题
According to the professor, how can a speaker indicate that the topic is about to change
A．By pausing.
B．By raising pitch.
C．By lowering register.
D．By pointing to a chart.
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