问题:现场评审时,被评审实验室存在以下哪种情况,可以终止评审,不予推荐认可:()。...
Thursday, September 22, 2022
Thursday, September 22, 2022
Sunday, September 18, 2022
问题:单选题色谱柱的分离效能主要是()决定的。A 固定相B 流动相C 温度D 流速...
Thursday, November 30, 2023
Thursday, September 22, 2022
问题:判断题将移液器倾斜插入枪头,非常用力转动使其紧密结合。A 对B 错...
Tuesday, March 5, 2024
问题:配制LST发酵培养基加入月桂基硫酸盐的作用是()。...
Thursday, September 22, 2022
Thursday, February 16, 2023
Thursday, September 22, 2022
Thursday, September 15, 2022
Saturday, September 17, 2022
问题:单选题光的基本特性是()。A 可见到的光B 紫外光C 电磁辐射D 波粒二象性...
Tuesday, March 5, 2024
问题:单选题检测钙元素时加的改进剂()。A 磷酸氢二铵B 铁氰化钾C 硝酸氢二铵D 氧化镧...
Monday, December 11, 2023
Saturday, September 17, 2022
Thursday, September 15, 2022
Sunday, September 18, 2022
问题:在液相色谱中,为了获得较高柱效能,常用的色谱柱是()。...
Thursday, September 22, 2022
问题:单选题磷酸盐缓冲液的成分为()。A 磷酸二氢钾B 磷酸氢二钾C 磷酸钠D 双磷酸盐...
Friday, January 27, 2023
Thursday, September 22, 2022