A 心室肌细胞的4期有自动除极 B 窦房结细胞4期主要是K<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123341_0.gif">外流递减，Na<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123341_0_1.gif">内流递增 C 心室肌细胞动作电位的特点是复极持续时间短 D 心室肌细胞3期复极主要是K<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123341_0_2.gif">内流 E 窦房结细胞0期除极速度快、幅度高

A Fe<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123321_0.gif"> B Zn<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123321_0_1.gif"> C Mg<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123321_0_2.gif"> D Al<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123321_0_3.gif"> E Na<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123321_0_4.gif">

A 去甲肾上腺素有强烈的收缩血管作用 B 两者都可引起肝脏血管收缩 C 肾上腺素使心率增加，心肌收缩力加强 D 肾上腺素对总外周阻力影响不大 E 去甲肾上腺素对β<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123342_0.gif">肾上腺素能受体的作用比肾上腺素弱

A 是指肺泡与外界环境之间的气体交换 B 肺泡中O<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123343_0.gif">分压低于静脉血，CO<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123343_0_1.gif">分压高于静脉血 C 静脉血流经肺泡时，O<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123343_0_2.gif">向肺泡扩散 D 静脉血流经肺泡时，肺泡中CO<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123343_0_3.gif">向血液扩散 E 气体交换的结果是使静脉血变成动脉血

A 胃的容受性舒张有助于接纳和贮存食物 B 紧张性收缩是胃运动形式之一 C 胃的分节运动有利于胃液的消化作用 D 胃蠕动促进胃排空 E 脂肪在胃排空的速度慢于蛋白质

A 胆汁对脂溶性维生素的吸收作用不大 B 胆汁作用的主要成分是胆固醇 C 胆汁中含消化酶 D 胆盐可水解脂肪为脂肪酸和单酰甘油 E 胆汁可促进脂肪的消化和吸收

A 辐射散热 B 传导散热 C 对流散热 D 蒸发散热 E 辐射+对流散热

A Na<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123347_0.gif">，K<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123347_0_1.gif">，尤其是K<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123347_0_2.gif"> B Ca<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123347_0_3.gif">，Cl<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123347_0_4.gif">，尤其是Ca<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123347_0_5.gif"> C Na<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123347_0_6.gif">，Cl<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123347_0_7.gif">，尤其是Na<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123347_0_8.gif"> D K<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123347_0_9.gif">，Cl<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123347_0_10.gif">，尤其是Cl<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123347_0_11.gif"> E K<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123347_0_12.gif">，Ca<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123347_0_13.gif">，Na<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123347_0_14.gif">，尤其是Ca<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241227/9123347_0_15.gif">

A 2个 B 9个 C 3个 D 1个 E 6个

A 有能力做的就应该去做 B "大医精诚" C 临床医学决策同时也是伦理决策 D "医乃仁术" E 前沿医学技术应用于临床必须有医德参与