方法methodA返回类型是:()1.publicclassreturnIt{2.returnTypemethodA(bytex,doubley){3.return(short)x/y*2;4.}5.}
A.int
B.byte
C.long
D.double
A.int
B.byte
C.long
D.double
A、cout << x;
B、cout << y;
C、cout << z;
D、cout << a;
A、r.p = new POINT[4]; r.p[0].x=0; r.p[1].y = 2;
B、r.p ={new POINT(2.0,3.1), new POINT(2.5,3.8), new POINT(5.0,8.1)};
C、r.p = new POINT[4]; r.p.x=0; r.p.y = 2;
D、r.p = new POINT[4]{{1,1},{2,2},{3,3},{4,4}};
classXX{
private:
doublexl;
protected:
doublex2;
public:
doublex3;
};
claseYY:protectedXX{
private:
doubleyl;
protected:
doubley2;
public:
doubley3;
};
在类YY中保护成员变量的个数是()。
A.1
B.2
C.3
D.4
A、syms x;f= 1/(x*log(x));int(f,x, 3 ,+inf)
B、syms x;f=1/x*log(x);int(f,x, 3 ,+inf)
C、syms x;f=1/xln(x);int(f,x, 3 ,+inf)
D、syms x;f= 1/(x*ln(x));int(f,x, 3 ,+inf)
A、$x$y(F(x,m) ®Ø G(t,y))
B、$x∀y(F(x,m) ®Ø G(t,y))
C、∀x$y(F(x,m) ®Ø G(t,y))
D、∀x$y(F(x,m) ® ØG(t,y))
A、CMyPoint p3=p1+p2;
B、operator +(p1,p2);
C、p1=p1.operator +(p2);
D、p1=p1 +(p2);
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