【題目】An invention is a new way of solving a problem, so try our best to think of many __________ and unusual ways.

A. varying

B. variety

C. varied

D. variation

【答案】C

【解析】句意:發(fā)明就是解決問題的新方法，所以我們應(yīng)盡最大的努力去想很多不同的獨(dú)特的方法。varied不同的。

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