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问题: 英语题

1、We have both red and white wine.Do you have a(n) _______ for one or the other? White ,please.
A favour B preference
为什么不选A 另外B不是应该和to搭配吗
2、It is said in some parts of the world, goats ,rather than cows, serne as a vital_____ of milk.
A resource B source
为什么为什么,怎么区别

解答:

1题中B项用的是名词,此时它并不一定要与to搭配
2题中A项为“资源”,B项为“来源”