1 . As we all know, success lies in hard work ___________________ .
我们都知道,成功在于努力,而懒惰导致失败。
我们都知道,成功在于努力,而懒惰导致失败。
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2 . Experts warn that medical waste from hospitals, if not handled properly, may lead ________ the spread of diseases. (用适当的词填空)
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3 . Many different people ________ the development of TV.
A.led to | B.contributed to | C.stuck to | D.are addicted to |
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