it is not alwasy easy for the public to see what use a New invent_英语解答

it is not alwasy easy for the public to see what use a New invention can be of to human life
宾语为什么不选which

人气：467 ℃　时间：2019-08-31 14:39:24

解答

what引导宾语从句what 做see 的宾语
which有意思哪一个,放在这里不通