初中教育初三英语江苏省无锡市东林中学2012-2013学年第二学期第一次模拟考试试卷初三英语
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This type of research is done because ________.

2024-07-14

A.the technology that produces mobile phones is changing quickly

B.users are constantly throwing their mobiles away.

C.nobody has ever thought of recycling mobile phones

D.producing mobile phones uses a lot of energy, so this has become a very big problem for the environment

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