血浆pH值主要决定于下列哪一种缓冲对?

血浆pH值主要决定于下列哪一种缓冲对?A.KHCO3/H2CO3B.K2HPO4/KH2PO4C.NaHCO3/H2CO3D.Na2HPO4/NaH2PO4E.蛋白质-Na/蛋白质

查看答案

关于静脉,下列叙述中哪一项是错误的?

关于静脉,下列叙述中哪一项是错误的?A.接受交感缩血管纤维支配B.管壁平滑肌在静脉被扩张时发生收缩C.容纳了全身血量的一半以上D.回心血量的多少与体位变化关系不大E.回心血量取决于外周静脉压和中心静脉压

查看答案

A)present B) offer C) manifest D) indicate

A)presentB) offerC) manifestD) indicate

查看答案

George Annas would probably agree that doctors should be punished if they ______

George Annas would probably agree that doctors should be punished if they ______.A) manage their pati

查看答案

A) mode B) way C) form D) fashion

A) modeB) wayC) formD) fashion

查看答案