单项选择题

A．Posters allow people to eat poorly.
B．A bad diet is a symptom of social, cultural, and economic problems.
C．Poor people are not aware of the four food groups.
D．Alcohol contributes to a bad diet.
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单项选择题
The passage gives an overview of the effects of global warming on the United States.
A．Y
B．N
C．NG
单项选择题
A．To get the best of your life—continuing education.B．Continuing education for a better job and better salary.C．To learn what we enjoy in continuing education.D．Continuing education for people with initiative.
A．To get the best of your life—continuing education.
B．Continuing education for a better job and better salary.
C．To learn what we enjoy in continuing education.
D．Continuing education for people with initiative.
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