【单选题】从产品成本现实意义上说,下列关于产品成本的描述正确的是:
A.
产品成本是一定时期内生产产品过程中发生的价值消耗
【单选题】在SQL*PLUS工具里执行下列语句: SELECT power(9,3) FROM DUAL; 得到的查询结果是?
【单选题】表达式select (9+6*5+3%2)/5-3的运算结果是______。
【简答题】“忧劳可以兴国,逸豫可以亡身”出自( ) 。
【单选题】—Do you know the man was talking to our English teacher? —Yes. It’s Mr Baker, our maths teacher.
【单选题】Miss Fang is ______ English teacher. ___ is a good teacher. [ ]
【单选题】语句SELECT SQRT(9), POW(8,2); 的执行结果是
【单选题】Our class teacher is still on ______ holiday, so our monitor will be in ______ charge of the meeting today.