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【单选题】
Questions 23 to 24 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions.
Questions 23 to 24 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions.The world food production is said to be increased by ______ in next two decades.
A.
15%
B.
20%
C.
30%
D.
50%
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A.
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B.
if it marketed aggressively
C.
how aggressively producers market it
D.
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