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【单选题】
人的肺泡外缠绕着毛细血管网,肺泡壁和毛细血管壁都很簿,这有利于 [     ]
A.
气体在血液中运输
B.
血液与肺泡间的气体交换
C.
肺与外界的气体交换
D.
增加肺内气体交换的面积
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葡萄糖
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C.
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B.
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A.
教育行政机关
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C.
公安机关
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A.
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【简答题】1 In a moment , I’m going to ask you to close your eyes, think about one word, and tell me what comes to mind . Not yet. First you have to know what the word is. 2 The word is “success”. 3 Now close y...
【简答题】Try to see the issue from a different ____________ . 试以不同的角度看待这件事。(pers)
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