单项选择题

A．at
B．of
C．in
D．with
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单项选择题
A．AlthoughB．ThoughC．HoweverD．In addition
A．Although
B．Though
C．However
D．In addition
单项选择题
A．typicallyB．simplyC．sampleD．example
A．typically
B．simply
C．sample
D．example
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