气质学说最先源于古希腊医生希波克里特的体液说,他认为人体内有()
A.粘液
B.黄胆汁
C.黑胆汁
D.血液
E.脑脊液
参考答案:A, B, C, D
—Can I smoke here?
—No, at no time in the library.
A.permits smoking
B.does smoking permit
C.smoking is permitted
D.is smoking permitted
不能使血管平滑肌舒张的物质是()
A.缓激肽
B.乙酰胆碱
C.前列腺素
D.局部代谢产物
E.血栓素