单项选择题

A．He lost a button at work.
B．He doesn’’t know where he put the calculator.
C．He thinks he broke something the woman lent him.
D．He’’s not sure how to solve the math problem.
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单项选择题
The author concludes the passage with the advice that ________.
A．the benefit of daily multivitamin intake outweighs that of exercise and a balanced diet
B．it’’s risky to take multivitamins without knowing their specific function
C．the potential benefit of multivitamins can never be overestimated
D．it’’s reasonable to take a rational dose of multivitamins daily
填空题
A．muchB．littleC．moreD．less
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