单项选择题


A．moreover
B．otherwise
C．therefore
D．however
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单项选择题
A．averageB．normalC．regularD．ordinary
A．average
B．normal
C．regular
D．ordinary
单项选择题
A．demonstratedB．implementedC．releasedD．revealed
A．demonstrated
B．implemented
C．released
D．revealed
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