It is true that______ a wild plant into a major crop such as wheat requires much research time.

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问题 It is true that______ a wild plant into a major crop such as wheat requires much research time.

选项 A、magnifying
B、multiplying
C、breeding
D、generating

答案C

解析 动词辨析 magnify“放大,扩大;夸大”;multiply“(使)增加;繁殖”;breed“饲养;养育,培育”; generate“生成,产生;导致,引起”。
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