题目内容
对咖啡因的叙述不正确的是
2021-12-27
A.小剂量作用部位在大脑皮质
B.较大剂量可直接兴奋延髓呼吸中枢
C.中毒剂量时可兴奋脊髓
D.直接兴奋心脏，扩张血管
E.收缩支气管平滑肌
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