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当前学科：环保知识竞赛
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为了更好地满足西南大水电基地、新疆大型煤电基地和风电基地的电力外送需求，我国正在进一步开展（）千伏特高压直流输电技术的研究工作。
A
1200
B
1100
C
1000
D
900
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