题目内容
The world is ________ seven continents and four oceans.
A.made up of B.made out of
C.made from D.made of
A
be made up of意思是“由……组成(构成)”,选A。

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题目内容
The world is ________ seven continents and four oceans.
A.made up of B.made out of
C.made from D.made of
A
be made up of意思是“由……组成(构成)”,选A。