企业战略管理的一般过程应是一个循环往复而呈螺旋上升的过程。()
A. 正确
B. 错误
有如下程序: #include<iostream> using namespace std; class GA{ public: virtual int f(){return 1;} }; class GB:public GA{ public: virtual int f(){return 2;} }; void show(GA g){eout<<g.f();} void display(GA&g){cout<<g.f();} int main(){ GA a;show(A) ;display(A) ; GB b;show(B) ;display(B) ; return 0; } 程序的输出结果是
A. 1111
B. 1211
C. 1112
D. 1212
Why are the London taxi drivers very efficient?
A. Because they have a driving license.
Because they have received special training.
C. Because the traffic conditions in London are good.
D. Because the traffic system of the city is not very complex.
约公元前3000年左右,苏美尔开始出现城市国家,先后出现的重要城市国家里不包括乌尔。()
A. 正确
B. 错误