单项选择题

A．It’s expensive to manufacture.
B．it hasn’t been adequately tested.
C．It damages car engines.
D．it’s dangerous to transport.
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单项选择题
A．To enjoy some sunbathing.B．To take a hot bath.C．To get some sleep.D．To run downstairs and relax.
A．To enjoy some sunbathing.
B．To take a hot bath.
C．To get some sleep.
D．To run downstairs and relax.
单项选择题
A．To arouse students’ motivation for study.B．To be consulted on academic matters.C．To help students with their personal matters.D．To give tutorials in the office.
A．To arouse students’ motivation for study.
B．To be consulted on academic matters.
C．To help students with their personal matters.
D．To give tutorials in the office.
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