2. 外语
  3. Vitamin A can be found in meat. Too much vitamin-A supplements can be poisonous.

Vitamin A can be found in meat. Too much vitamin-A supplements can be poisonous.

admin2009-06-15  51
问题 Vitamin A can be found in meat.
Too much vitamin-A supplements can be poisonous.
选项 A、Right
B、Wrong
C、Not mentioned
答案A
解析 见末段。
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