()的作用是当对象被撤销时,释放该对象所占据的存储空间。。
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如果在类中没有明确定义析构函数,清除对象的工作仍由___________来完成,原因是___________。
若有以下程序结构,该程序运行时调用了___________次构造函数,调用了___________次析构函数。class Box{……};void main(){Box A,B,C;}
构造函数和析构函数的执行顺序为先构造的后析构,后构造的先析构
A. 对
B. 错
一些科学家担心人工智能机器人会将人变成宠物。
A. Some scientists are worried about that AI robots will turn humans into pets.
B. Some scientists worry that AI robots will turn humans into pets.
C. Some scientists worry that AI robots will be turned into pets.
D. Some scientists worry AI robots that will turn human into pets.