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【单选题】
贫血和一氧化碳中毒时,可携带氧的血红蛋白都减少,但并不引起呼吸加强,这是因为A.
颈动脉体血流量减少
B.
动脉血的氧分压在正常水平
C.
动脉血液内总的氧含量仍维持在正常水平
D.
颈动脉体化学感受器受到刺激
E.
主动脉体受到刺激
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举一反三
【简答题】You will have to answer for your foolish behavior.
【单选题】Choose the correct letter, A, B, C or D. Write your answer in box 40 on your answer sheet. Which of the following statements best summarizes the writer's general conclusion?
A.
Contac civism is better, while behaviorism leads to negative social effects.
B.
Each method complements the other, and their application should be integrated.
C.
Ideally constructivism would be used, but behaviorism is more pragmatic.
D.
Neither is particularly useful, and there needs to be a new alternative.