单项选择题

A．To indicate how climbers communicated.
B．To show that climbers enjoyed many comforts.
C．To show that modern telephones work at high altitudes.
D．To emphasize how small some equipment had become.
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单项选择题
A．The professor might give an exam in class.B．The man might not be able to leave campus early.C．The class might not finish their oral presentations.D．This week’s class might be longer than expected.
A．The professor might give an exam in class.
B．The man might not be able to leave campus early.
C．The class might not finish their oral presentations.
D．This week’s class might be longer than expected.
单项选择题
A．His roommate doesn’t like to talk much.B．He’s upset with his roommate.C．Someone other than his roommate caused the problem.D．He doesn’t want the woman to be friendly with his roommate.
A．His roommate doesn’t like to talk much.
B．He’s upset with his roommate.
C．Someone other than his roommate caused the problem.
D．He doesn’t want the woman to be friendly with his roommate.
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