单项选择题

South Carolina’s mineral resources are abundant, but not all of them can be lucratively mined.

A. profitably
B. safely
C. easily
D. extensively
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Mergers may be effective to revive or rejuvenate failing business by the infusion of new management and personnel.
A. inspection
B. introduction
C. evaluation
D. concentration
单项选择题
A fable is a didactic tale focus on a single character trail.
A. an authentic
B. a muddied
C. an instructive
D. an old—fashioned
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