单项选择题

Chief Engineer Mike Myers’ expertise ______ chemical materials has enabled him to move to the very top of his field.

A. against
B. for
C. on
D. in
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Customers need to consider carefully ______ kind of interior fittings will best satisfy both their needs and tastes.
A. which
B. since
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单项选择题
The task of the high-profile planning committee will be to ______ the Asian Games organizers to choose our city as the site of the next games.
A. convince
B. dispose
C. present
D. state
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