职工应当参加基本养老保险，由用人单位和职工共同缴纳基本养老保险费。公务员和参照公务员法管理的工作人员养老保险的办法按照企业参加基本养老保险规定执行。
You have a production instance running on your server. UNDO_RETENTION is not long enough to satisfy read-consistency requirements. How do you change the UNDO_RETENTION value？（） ["A","B","C","D"]
盛装腐蚀性气体的钢质焊接气瓶每（）年检验一次，使用寿命12年。 ["2","3","4","5"]
张某，男性，40岁，劳动时不慎，左足被刺破，伤口处皮肤出现红线，并向近心端延伸，触及发硬并有压痛，最可能是（） ["浅静脉炎","深静脉炎","淋巴结炎","浅表淋巴管炎","深部淋巴管炎"]
Which statements are true regarding table compression？（） [" It saves disk space and reduces memory usage."," It saves disk space but has no effect on memory usage."," It incurs extra CPU overhead during DML as well as direct loading operations."," It incurs extra CPU overhead during DML but not direct loading operations."," It requires uncompress operation during I\/O."]
替代原则
