单项选择题

A．diseases
B．symptoms
C．signs
D．defects
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单项选择题
A．atB．throughC．inD．as
A．at
B．through
C．in
D．as
单项选择题
Mitch McConnell was ________.
A．Secretary of State
B．Republican senator
C．Democratic senator
D．the spokesman of the Bush administration
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