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    China has made great progress in the sun’s rays as a source of energy. A. harness B. harnessing C. harvest D. harvesting 【查看更多】

     

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    5. China has made great progress in     the sun’s rays as a source of energy.

       A. harness      B. harnessing       C. harvest       D. harvesting

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    5. China has made great progress in     the sun’s rays as a source of energy.

    A．harnessB．harnessingC．harvestD．harvesting

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