◎ 题干
It's not always easy for the public to see _____________ use a new invention can be of to human life.
[     ]
A. whose              
B. which              
C. what                
D. that
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“It's not always easy for the public to see _____________ use a new invention can be of to human life.[ ]A. whoseB. whichC. whatD. that…”主要考查了你对  【连接代词】【宾语从句】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。