People all over the world cultivate plants for food and for sale, but a surprising consequence of selective breeding has been the alteration of fruits and vegetables, and, after many generations, they are changed significantly in taste and appearance.
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A
the alteration of fruits and vegetables, and, after many generations, they have been changed
分析该选项
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B
altering fruits and vegetable, and, after many generations, to change them
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C
having fruits and vegetables altered, and, after many generations, they were changed
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D
to alter fruits and vegetables, and, after many generations, to change them
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E
that fruits and vegetables were altered, which, after many generations, were changed
分析该选项