It is not always easy for the public to see use a new invention can be of to human life.A

发布时间：2020-08-16 18:04:11

It is not always easy for the public to see      use a new invention can be of to human life.
A. whose
 B. what
 C. which
 D. that

网友回答

解析： 考查连接词，句意：对于公众来说看到一项新发明对人类有什么用途并不总是很容易的。什么用途应表达为what use，what 作定语。所以选B。
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