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填空题
飞行区围界破损后应当及时修复。破损部位修复前应当采取有效的()。
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选择题
Of all the universities in the world, those in the EU are ____ most attractive because they have ____ diversity of cultures and teaching methods.
A. the; the
B. a; the
C. the; a
D. a; a
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问答题 简答题
货规规定哪些货物应派人押运?
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