单项选择题

A．15 points.
B．30 points.
C．45 points.
D．75 points.
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单项选择题
A．We are making too many vehicles.B．We have more and more industry.C．There are too many developing countries.D．People use too many man-made materials.
A．We are making too many vehicles.
B．We have more and more industry.
C．There are too many developing countries.
D．People use too many man-made materials.
单项选择题
A．A druggist’s suggestion.B．An article.C．An advertisement.D．A sales clerk’s comment.
A．A druggist’s suggestion.
B．An article.
C．An advertisement.
D．A sales clerk’s comment.
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