2. 专升本
  3. It is a well-known fact that water ______ atoms of hydrogen and oxygen.

It is a well-known fact that water ______ atoms of hydrogen and oxygen.

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问题 It is a well-known fact that water ______ atoms of hydrogen and oxygen.
选项 A、consists in
B、consists of
C、composed of
D、is made from
答案B
解析
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