【判断题】电解含有下列金属离子的盐类水溶液: 。只有 能被还原成金属单质。
【简答题】One who makes no investigation has no right to speak.
【判断题】数控加工中,程序调试的目的:一是检查所编程序是否对,再就是把编程零点,加工零点和机床零点相统一。
【单选题】One who makes good use ___ his time will be successful.
【简答题】One who makes fun another is usually not confident of himself.