【判断题】特种加工中使用的工具电极的硬度可以比工件的硬度低。
【简答题】研究矿物晶体结构最常用而有效的方法是什么?它有什么特点?
【单选题】Hurry up! By the time we get to the church, the marriage service _____. A.had startedB.will have
A.
31. Hurry up! By the time we get to the church, the marriage service _____. A.had started
【单选题】The marriage will __ next Sunday.
【判断题】The public predict that their marriage will last long.