题目
Compared to a constant pitch propeller, a controllable pitch propeller
A.more efficiently uses available engine power
B.operates at a lower efficiency at a fixed speed
C.produces the same torque at lower engine power
D.develops its rated power at a lower speed
第2题
A.Consta As Single=10.5
B.Consta As Double=Cos(10.5)
C.Consta="abc"
D.Consta As Integer=10.5
第4题
A.ConstaAsSingle=3.5
B.ConstaAsDouble=Sin
C.ConstaAsInteger="25"
D.Consta="OK"
第5题
A.ConstAAsSingle=1.5
B.ConstAAsDouble=Sin(1)
C.ConstA="OK"
D.ConstAAsInteger=1.5
第6题
A.ptr->a=100;
B.ptr=&obj2;
C.ptr++;
D.obj2=*ptr;
第7题
A、ConstDay=星期一
B、ConstDate=15/9/2006
C、ConstA=10
D、ConstDate=2006-9-15
第8题
下列可作为VisualBasic变量名的是()。
A. A#A
B. constA
C. ?xy
D. 4A
第9题
A.ptr->a=100;
B.ptr=&obj2;
C.ptr++;
D.obj2=*ptr;
第10题
有如下程序: #inClude using nameSpace std; Class A{ public: A(inti=0):r1(i){ } void plint(){cout<<‘E’<<r1<<‘-’;} void print()const{cout<<‘C’<<r1*r1<<‘-’;} void print(int X){cout<<‘P’<<r1*r1*r1<<‘-’;} prlvate: intrl; }; intmain(){ Aal; constA a2(4); a1.print(2); a2.print(); returh0; } 运行时的输出结果是()。
A.P8-E4
B.P8-C16-
C.P0-E4-
D.P0-C16-
第11题
有如下类和对象的定义: class Constants{ public: static double getPI(){return 3.1416;} }; Constants constants; 下列各组语句中,能输出3.1416的是
A.cout<<constants->getPI();和cout<<Constants::getPI();
B.cout<<constants.getPI();和cout<<Constants.getPI();
C.cout<<constants->getPI();和cout<<Constants->getPI();
D.cout<<eonstants.getPI();和cout<<Constants::getPI();
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