配伍题

1.动脉血二氧化碳分压升高引起呼吸加强的主要机制是（）丨2.低氧对呼吸的兴奋作用是（）

A.刺激外周化学感受器
B.刺激中枢化学感受器
C.直接作用于呼吸中枢
D.刺激肺牵张感受器，
E.刺激脑桥调整中枢

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