2. 外语
  3. No scientist knows how man made words. In order to make a speech, we need sounds and words.

No scientist knows how man made words. In order to make a speech, we need sounds and words.

admin2009-09-17  33
问题 No scientist knows how man made words.
In order to make a speech, we need sounds and words.
选项 A、Right.
B、Wrong.
C、Doesn’t say.
答案C
解析 文中没有讲到这一点。
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