对中国籍船舶安全检查的依据是() ["我国有关法律、法规","我国有关规章","我国技术规范","已生效的国际公约"]
肺吸虫()。 ["A.尾蚴经皮肤侵入,成虫不寄生于人体","B.囊蚴经口食入,成虫寄生于小肠","C.囊蚴经口食入,童虫随血行移行","D.囊蚴经口食入,童虫经腹腔至胸腔移行","E.尾蚴经皮肤侵入,成虫寄生于门脉系统"]
与急性粒细胞白血病治疗完全缓解不符合的是() ["骨髓中原粒细胞≤5%","红系细胞及巨核细胞正常","HGB≥90g\/L(女性及儿童)","外周血中性粒细胞≥4.0×109<\/sup>/L","血小板计数≥100×109<\/sup>/L"]
用二苯碳酰二肼分光光度法测定水中六价铬时,在水样采集至分析时应采用下列哪种方式() ["水样不加酸保存,当天测定","水样中性或弱碱性保存,当天测定","水样中性保存,1周测定","水样加酸保存,1周测定","水样中性或弱碱性保存,2周内测定"]
单人进行心肺复苏时,人工呼吸和胸外按压的比例应是() ["2∶30","2∶5","4∶15","2∶10","1∶5"]
侥幸心理