Saturday, September 17, 2022
单选题血清,抗毒素等可用下列哪种方法除菌?( )A 高压蒸汽灭菌B 加热56℃ 30minC 滤菌器过滤D 紫外线照射E 巴氏消毒法...
Thursday, April 25, 2024
Thursday, September 15, 2022
Thursday, September 22, 2022
Sunday, September 18, 2022
Thursday, September 22, 2022
单选题遗传密码的简并性指的是( )。A 一些密码适用于一种以上的氨基酸B 一些三联体密码可缺少一个嘌呤碱或嘧啶碱C 大多数氨基酸有一组以上的密码D 密码中有许多稀有碱基E 以上都不是...
Friday, August 11, 2023
Thursday, September 22, 2022
Thursday, September 22, 2022
当继续为患者保守秘密会给他人带来不利或危害,医务人员可以并应该不保守秘密的是( )。...
Saturday, September 17, 2022
单选题下列对外毒素的描述不正确的是( )。A 细菌在细胞内合成后分泌至细胞外B 毒性强C 对机体的组织器官有选择作用D 蛋白质,不耐热E 抗原性弱,抗体无中和作用...
Tuesday, December 19, 2023
Thursday, September 22, 2022
Thursday, September 22, 2022
单选题抗体初次应答的特点是( )。A 为低亲和性抗体B 以IgG为主C 抗体含量较高D IgG与IgM几乎同时产生E 抗体维持时间较长...
Monday, January 22, 2024
Wednesday, September 21, 2022
Saturday, September 17, 2022
Tc细胞活化、增殖、分化与下列哪种分子无直接关系?( )...
Thursday, September 22, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022