单项选择题

In the Pacific Northwest, as climate and topography vary, so do the species that prevail in the forests.

A．dominate
B．reproduce
C．rebuild
D．invade
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单项选择题
In buying a suit, a difference of ten cents in price is negligible.
A．negligent
B．negotiable
C．insignificant
D．consequential
单项选择题
The report sets out strict inspection procedures to ensure that recommendations are properly implemented.
A．made up of
B．carried out
C．put into operation
D．charged with
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