单项选择题

According to this news item, experts are concerned about the following aspects EXCEPT ______.

A. population growth.
B. food resources.
C. water pollution.
D. water resources.
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单项选择题
The following can be bought online EXCEPT ______.
A. the paper products
B. the cleaning products
C. the cereals

D. the meats
填空题
counter-side issue
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