Thursday, September 15, 2022
问题:某电镀厂周围怀疑铬污染,可能己造成了居民的健康危害,请CDC进行...
Sunday, September 11, 2022
问题:标准中规定每克或每毫升化妆品中不得检出的微生物是()...
Thursday, September 15, 2022
问题:卫生湿巾除必须达到相应的微生物指标外,对大肠杆菌和金黄色葡萄球菌的杀灭率须达到多少()。A、≥50%B、≥80%C、≥70%D、≥90%E、≥99%...
Tuesday, March 14, 2023
问题:常常影响预防性卫生监督工作质量的关键阶段是()。...
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:对个别深入访谈描述正确的是()。A、属于结构式访谈B、灵活性较小C、对访谈员要求不高D、结果可以外推E、一般只能在小样本人群中进行...
Sunday, April 28, 2024
Thursday, September 15, 2022
问题:住宅室内小气候的卫生对居民健康有重要作用。室内小气候主要组成因素有()。A、气湿B、热辐射C、气压D、紫外线辐射E、气温F、气流...
Tuesday, March 14, 2023
Sunday, September 11, 2022
Thursday, September 15, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
Monday, September 12, 2022
Thursday, September 15, 2022
Sunday, September 11, 2022
问题:《突发公共卫生事件应急条例》规定,在全国范围内启动应急预案时,需...
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:在实际工作中,常常与慢性毒性试验结合的试验是()。A、致癌试验B、致畸试验C、致突变试验D、发育毒性试验E、蓄积试验...
Monday, March 11, 2024