单项选择题

Millions of Americans flock to their drugstores to buy vitamins and minerals, ______ that these pills can help prevent serious illnesses.

A. convincing
B. convinced
C. to convince
D. to be convinced
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单项选择题
Becoming aware of our mother’ s age, not just in numbers of years but ______ her psychological and physical state, often helps us to understand her better.
A. in spite of
B. in charge of
C. in terms of
D. with respect to
单项选择题
We have to hurry up since we have no ______ time to finish it.
A. sufficient
B. additional
C. efficient
D. consequent
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