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    29．Deep snow ,strong wind and cold made the repair work to the broken electric wires and towers the hardest task last winter. A．optimistic B．positive C．extreme D．major 【查看更多】

     

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    Deep snow ,strong wind and       cold made the repair work to the broken electric wires and towers the hardest task last winter.

    A．optimistic                   B．positive               C．extreme               D．major

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