【单选题】【消耗次数：1】
降低氧供不正确的是（ ）
①
动脉血氧含量降低
②
冠状动脉血流量降低
③
血红蛋白含量降低
④
血氧饱和度降低
⑤
冠状动脉血管阻力降低
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相关题目
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随机题目
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when she returned
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that did she return
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Because
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With
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By
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Without
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at times
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time before time
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time and again
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for the time being
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①
circles
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is circling
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has been circling
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were circling
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If he_____the storekeepers scissors,he would have forgotten to buy a pair.
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would not see
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had not seen
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having not seen
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has not seen
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did she return
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that she returned
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when she returned
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sensitive
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senseless
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insensitive
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