The majority of the tutors in the Trinity experiment are students who ______.
A. cause discipline problems at school
B. are unable to read or write
C. frequently stay away from school
D. have some difficulties in learning
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【C20】
A. registers
B. pays
C. seeks
D. asks
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.