业务流程调查主要任务是调查系统中各环节的()活动,掌握业务的内容、作用、及信息的输入、输出、数据存储和信息的处理方法及过程等.
A.系统
B.数据流
C.业务
D.模型
参考答案:C
有以下程序 #include<iostream> using namespace std; class Base { private: char c; public: Base(char n):c(n){} ~Base() { cout<<c; } }; class Derived:public Base { private:char c; public:Derived(char n):Base(n+1),c(n){}~Derived(){ cout<<c;} }; int main() { Derived obj(’x’); return 0; } 执行后的输出结果是
A.xy
B.yx
C.x
D.y
—You didn’t wait for Mr. Black last night, did you?
—No, but we ____. He didn’t return home at all.
A.couldn’t have
B.needn’t have
C.didn’t need to
D.should wait have