2. 外语
  3. In an experiment conducted last autumn, scientists made exact copies of a human embryo for the first time. After the egg is fer

In an experiment conducted last autumn, scientists made exact copies of a human embryo for the first time. After the egg is fer

admin2009-07-11  60
问题 In an experiment conducted last autumn, scientists made exact copies of a human embryo for the first time.
After the egg is fertilized the nucleus begins dividing.
选项 A、Right
B、Wrong
C、Not mentioned
答案C
解析 该句句意为“卵细胞受精后核开始分裂”，但本文并未提到这点。
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