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:2,5,9,15,24,()A.30 B.33 C.37D.40
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2, 5, 10, 17, 26, () A.29 B.33 C.37 D.41
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O,5,8,17,24,() A.30 B.36 C.37 D.41
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1,2,5,10,17,()。 A.23B.25C.26D.28
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2,5,10,17,() A.26B.30C.38D.44
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当患者吸入氧气流量为2L/min时,其氧浓度是A.29%B.33%C.37%D.41%E.45%
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85 52 () 19 14A.28B.33C.37D.41