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【简答题】
引起维生素缺乏症的常见原因有哪些
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皮皮学刷刷变学霸
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【单选题】What do we learn about the Mariana Trench? PASSAGE The Mariana Trench(马里亚纳海沟) in the northern Pacific is the deepest part of the world's oceans. You might think a place that remote would be untouched ...
A.
It is the center of the world's ocean.
B.
It has been affected by contamination.
C.
It remains untouched by human activity.
D.
It has been profoundly explored by scientists.
【简答题】阅读《国殇》中的一段诗句，回答问题：
出不入兮往不反，平原忽兮路遥远；带长剑兮挟秦弓，首身离兮心不惩；诚既勇兮又以武，终刚强兮不可凌；身既死兮神以灵，子魂魄兮为鬼雄！将段文字中的下列诗句译成现代汉语。“身既死兮神以灵”“子魂魄兮为鬼雄”
【简答题】《国殇》：“身既死兮神以灵， _______________。
【单选题】What have the scientists discovered about the amphipods? PASSAGE The Mariana Trench(马里亚纳海沟) in the northern Pacific is the deepest part of the world's oceans. You might think a place that remote would...
A.
They are trapped in the trench.
B.
They live on organic pollutants.
C.
They have been highly polluted.
D.
They are identified as a new species.
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