Theoldmanisagreatscientist,hehas

发布时间：2020-07-10 08:16:07

The old man is a great scientist, he has ________ knowledge on puters.













A.many












B.a lot











C.a bit of











D.much

网友回答

D解析D(many修饰可数名词，a lot不能修饰名词，a bit of和much修饰不可数名词。)
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