单项选择题

A．To emphasize the dangers of the old method.
B．To explain a step in the new technique.
C．To show that the treatment will not cause fire.
D．To illustrate a combination of old and new treatment.
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单项选择题
A．Worry about his family.B．Cheek locks.C．Look after children.D．Have a look round.
A．Worry about his family.
B．Cheek locks.
C．Look after children.
D．Have a look round.
单项选择题
A．They were both busy doing their own work.B．They waited for each other at different places.C．They went to the street corner at different times.D．The man went to the concert but the woman didn’t.
A．They were both busy doing their own work.
B．They waited for each other at different places.
C．They went to the street corner at different times.
D．The man went to the concert but the woman didn’t.
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