题目内容
【题目】An encyclopaedia often consists of a number of books.
A.is made up of
B.is made from
C.is made of
【答案】A
【解析】句意：百科全书经常是由很多书构成的。consist of=be made up of意思是“由……组成”，B.由……制成（看不出原材料）；C.由……制成（看得出原材料）。故选A。
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题目内容
【题目】An encyclopaedia often consists of a number of books.
A.is made up of
B.is made from
C.is made of
【答案】A
【解析】句意：百科全书经常是由很多书构成的。consist of=be made up of意思是“由……组成”，B.由……制成（看不出原材料）；C.由……制成（看得出原材料）。故选A。