已婚妇女()周岁以上或者实行晚婚后怀孕生育第一个子女为晚育。 ["23","20","24"]
Changing rescuers while carrying out artificial respiration should be done(). ["without losing the rhythm of respiration","only with the help of two other people","by not stopping the respiration for more than 5 minutes","at ten-minute interval"]
什么是降速烘燥阶段?
农业法规是指国家制定或认可的,并由国家强制力保证实施的,关于农业生产经营的()的总称。 ["农业行政法规","法律文件","规范性法律文件","法律条文"]
客户进行认购、申购交易,可按()方式进行。 ["金额","份额","AB两者兼可","AB两者均不可"]
设备发生事故,工程维修部有关人员(包括外包维修设备的供方维修人员)须立即赶赴现场,同时报告()。发生重大事故须立即报告公司()。