Water enters into a great variety of chemical reactions,___

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Water enters into a great variety of chemical reactions,___ have been mentioned in previous pages.
A.a few of B.a few of which C.a few of that D.a few of them
我知道答案是选B,我想问下,a few在从句中做的是主语 which做的是宾语,这是为什么啊,我是在新东方上网络视频时听到的,不理解啥意思,求高手指教.

a few of which在从句中一起作主语
of是介词,介词后面跟名词,这个名词就是介词的宾语,在a few of which这个结构中,which是宾语,a few是主语

a great variety of是什么意思英语翻译1.Though music a child enters into a world of beauty,exp Breaking up water into oxygen and hydrogen is a chemical cha There is a great deal of air in the water,___ ___the fish ca 英语翻译Abstract:Thiolysis of a variety of 1,2-epoxides in water a variety of 的用法 all variety of与a variety of有区别吗 a variety of 和the variety of 的区别? the variety of,a variety of 的区别? the variety of和a variety of一样吗?为什么 a variety of foods和variety of foods的区别? 英语口语发音a wide variety of items variety of of的o音不发?variety of