单项选择题

A．basis
B．norm
C．rule
D．variety
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单项选择题
A．SurprisinglyB．HistoricallyC．InterestinglyD．Generally
A．Surprisingly
B．Historically
C．Interestingly
D．Generally
单项选择题
A．anythingB．somethingC．nothingD．everything
A．anything
B．something
C．nothing
D．everything
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