[题目]Using renewable energy sources is a simple idea, but we find it hard to put into practice.A. one B. whatC. which D. that 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】Using renewable energy sources is a simple idea, but ________ we find it hard to put into practice.

A. one B. what

C. which D. that

【答案】A

【解析】

练习册系列答案

课课练与单元测试系列答案

世纪金榜小博士单元期末一卷通系列答案

单元测试AB卷台海出版社系列答案

黄冈新思维培优考王单元加期末卷系列答案

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