单项选择题

Question 30 is based on the following news. At the end of the news item, you will be given 5 seconds to answer the question.

A．the strong wind.
B．Global warming.
C．Industrial pollution.
D．Environmental damag
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单项选择题
Public acceptance of rabbit as an economical source of protein depends on ______.
A. how aggressively do producers market it
B. if it marketed aggressively
C. how aggressively producers market it
D. whether or not aggressive marketing
单项选择题
What will the pianist mainly do
A．Give a talk.
B．Play the piano.
C．Tour the world.
D．Hold a concert.
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