单项选择题

A．To make suggestions about proper nutrition.
B．To report the latest breakthroughs in medical science.
C．To talk about sleeping problems.
D．To offer advice on how to increase one’s energy.
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单项选择题
A．Nitrates and nitrites.B．Penicillin.C．Packaging labels.D．Additive medicine.
A．Nitrates and nitrites.
B．Penicillin.
C．Packaging labels.
D．Additive medicine.
单项选择题
A．She hasn’t liked the recent weather.B．She has been a little sick.C．She’s finally gotten over her fever.D．She’s had a lot of bad luck lately.
A．She hasn’t liked the recent weather.
B．She has been a little sick.
C．She’s finally gotten over her fever.
D．She’s had a lot of bad luck lately.
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