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
单选题在液相色谱中为了提高分离效率缩短分析时间应采用的装置是()。A 高压泵B 梯度淋洗C 贮液器D 加温...
Thursday, February 16, 2023
Thursday, September 15, 2022
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
Monday, September 19, 2022
单选题食品添加剂苯甲酸属于()。A 抗氧化剂B 护色剂C 防腐剂D 甜味剂E 漂白剂...
Sunday, February 26, 2023
Thursday, September 22, 2022
Thursday, September 22, 2022
Tuesday, September 20, 2022
判断题酶标仪检测原理是利用酶联免疫的原理,依据不同试剂盒的曲线对被检测组分进行快速定量检测。A 对B 错...
Thursday, April 25, 2024
Wednesday, September 21, 2022
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
Friday, September 16, 2022
Thursday, February 16, 2023
单选题配制LST发酵培养基加入月桂基硫酸盐的作用是()。A 抑制G+菌生长B 抑制G-菌生长C 促进大肠菌生长D 提供营养...
Tuesday, May 14, 2024
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
Tuesday, September 20, 2022
Thursday, September 22, 2022