2. 外语
  3. It is true that ______ a wild plant into a major food crop such as wheat requires much research time.

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

admin2013-06-03  20
问题 It is true that ______ a wild plant into a major food crop such as wheat requires much research time.
选项 A、multiplying
B、breeding
C、magnifying
D、generating
答案B
解析 breed意为“培养，养育”；multiply意为“乘，增多”：magnify意为“放大，夸大”：generate意为“产生”。
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