单项选择题

A．conference
B．symposium
C．seminar
D．discipline
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单项选择题
A．overtaxedB．overdosedC．overweighedD．overlapped
A．overtaxed
B．overdosed
C．overweighed
D．overlapped
单项选择题
A．acceleratingB．strengtheningC．decliningD．fluctuating
A．accelerating
B．strengthening
C．declining
D．fluctuating
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