单项选择题

A) designated C) invented
B) created D) designed

A．designated
B．created
C．invented
D．designed
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单项选择题
A) as C) for B) to D) by
A．as
B．to
C．for
D．by
单项选择题
A) industry C) business B) trade D) manufacturing
A．industry
B．trade
C．business
D．manufacturing
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