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【简答题】

Why did companies like Frito Lay announce that its food would be free of GM ingredients? They did so because those companies saw that ( ) .

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参考解析：
.
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【简答题】Who is Ronnie Cummins? Ronnie Cummins is ( ) .
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【判断题】Crossbreeding always works and it takes only a few years to get good results.
A.
正确
B.
错误
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【判断题】Many people think that GM foods may do harm to the environment and humans.
A.
正确
B.
错误
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【判断题】The Gerber and Heinz companies once used GM ingredients in their baby foods.
A.
正确
B.
错误
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【判断题】Allison Snow, who has concerns about the new technology, hopes that the technology will never be used in the future.
A.
正确
B.
错误
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【简答题】Where is the recipient now? She is most probably in ( ) .
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【判断题】Genes determine what a living thing looks like.
A.
正确
B.
错误
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【简答题】Who is the writer of this email? The writer of this email is ( ) .
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【简答题】From the subject (主题) line, what is this email mainly about? The subject line shows that the writer wants to tell the recipient that she has come back to ( ) .
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【单选题】I still unable to make myself ________ in the discussion, which worries me a lot.
A.
to be understood
B.
understanding
C.
understood
D.
understand
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