A. K+内流 B. Ca2+内流 Ca2+与K+内流 D. Na+与K+内流
A. 肺内压 B. 胸膜腔内压 C. 跨肺压 D. 跨胸壁压
A. took B. put C. brought D. carried
A. any B. some C. little D. few
A. Of B. Among C. Between D. Out of