单项选择题


A．Frequently
B．Incidentally
C．Occasionally
D．Eventually
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单项选择题
A．forB．withoutC．asD．about
A．for
B．without
C．as
D．about
单项选择题
A．expensiveB．mechanicalC．flourishingD．complicated
A．expensive
B．mechanical
C．flourishing
D．complicated
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