Saturday, September 10, 2022
问题:下列物质中,与还原剂和有机化合物(如纸.炭.木屑等)接触时能引起爆炸的是()。A、乙醇B、四氯化碳C、过氯酸D、甘油...
Wednesday, June 14, 2023
Wednesday, June 14, 2023
Saturday, September 10, 2022
问题:现行中国药典对纯化水增加了电导率和总有机碳的检查。...
Saturday, September 10, 2022
问题:电热器具和发热部件必须安装在不燃基座上,并远离可燃物。...
Saturday, September 10, 2022
问题:磺胺类药物多采用亚硝酸钠法测定含量,以永停法指示终点。...
Sunday, January 21, 2024
Monday, July 24, 2023
Tuesday, November 28, 2023
问题:药品的性状项下包括()A、外观B、臭C、溶解性D、味E、剂型...
Wednesday, February 21, 2024
问题:一种物质按规定方法测定由固体熔化为液体时的温度,或熔融同时分解的...
Saturday, September 10, 2022
Saturday, September 10, 2022
问题:原子吸收光谱分析中灯电流的选择原则是:在保证放电稳定和有适当光强...
Saturday, September 10, 2022
问题:方炔诺酮片10片,按药典规定检查含量均匀度。计算出A=1.6,S=8.0。按含量差异限度为±20%,则其含量均匀度()。...
Friday, June 9, 2023
问题:反应的摩尔数之比一般为1:1的是()A、配位滴定法B、非水滴定法C、两者皆是D、两者均不是...
Tuesday, November 28, 2023
问题:载气在使用前必须经过净化,通常除去载气杂质在干燥管填充()。...
Monday, October 16, 2023
Sunday, September 11, 2022
Saturday, September 10, 2022
问题:用直接碘量法测定维生素C注射液含量,下列说法正确的是()()。...
Wednesday, April 17, 2024
问题:凯氏定氮法测定有机含氮量全过程包括()A、消化B、碱化蒸馏C、吸收D、滴定...
Monday, July 24, 2023