问题
单项选择题 A1型题
弥散障碍常引起单纯缺氧，是因为（）
A.氧的弥散能力是二氧化碳的1／30
B.氧的弥散能力是二氧化碳的1／20
C.氧的弥散能力是二氧化碳的1／10
D.氧的弥散能力是二氧化碳的20倍
E.氧的弥散能力是二氧化碳的30倍
答案
参考答案：B
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弥散障碍常引起单纯缺氧，是因为（）
A.氧的弥散能力是二氧化碳的1／30
B.氧的弥散能力是二氧化碳的1／20
C.氧的弥散能力是二氧化碳的1／10
D.氧的弥散能力是二氧化碳的20倍
E.氧的弥散能力是二氧化碳的30倍
参考答案：B
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| I like pandas very much. They are very 1 . Most of them live in Sichuan, 2 . They 3 white fur (皮毛), but their shoulders, legs, ears and eyes are 4 . Pandas are usually heavy, but they can climb trees like 5 animals. Pandas like eating bamboo 6 . They also like sleeping. They 7 some hours every day. Sadly, there are 8 pandas in the world today. 9 some people cut down (砍伐) too many bamboo trees. I think we must 10 them. | ||||
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