【多选题】两块蓝宝石做成的拼合石经常会出现:().
【单选题】下面有关变量和常量的说法,正确的是( )
A.
常量在内存中的存储单元是固定的,变量则是变动的
B.
在程序运行过程中,变量的值是不能改变的,而常量是可以改变的
【简答题】非编码矩阵式键盘获得键值的方法有 和 。
【单选题】听力原文:M: Did you have any trouble getting into the office? I was afraid you couldn't find the hiding place for the key. W: No trouble at all. I looked in the hiding place as you described to me. Q: Why...
【单选题】Wang Ling went to work in an open area, _______ volunteers were building shelters for earthquake survivors.