The teacher asked his students what oil was ______.

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问题 The teacher asked his students what oil was ______.

选项 A、made of
B、made by
C、made up of
D、made from

答案C

解析 A和C区别是be made of意为“由…做成”；be made up of意为“由…组成”。根据句子的意思，老师应该是问学生石油是由什么组成的。

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公共英语二级笔试

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