直线y=x+2与两坐标轴所围成的三角形面积为______.
当x=0时,y=2,
当y=0时,x=-2,
∴所求三角形的面积=12×2×|-2|=2.
故填2.
可引起动物明显全身症状的疾病是()
A.血肿
B.脂肪瘤
C.蜂窝织炎
D.局部气肿
E.淋巴外渗
有如下程序: #include<iostream> using namespace std; class Base int b; public: Base(int i)b=i; void disp( )cout<<"Base:b="<<b<<’’; ; class Basel:virtual public Base public: Basel(int i):Base(i) f; class Base2:virtual public Base public: Base2(int i):Base(i) ; class Derived:public Base2.public Basel int d; public: Derived(inl i,int j):Basel(j),Base2(J),______d=i; void disp( )cout<<"Derived:d="<<d<<": f; int main( ) Derived objD(1,2);objD.disp( ); objD.Basce::disp( ); objD.Bascel::disp( ); objD.Basce2::disp( ); return 0; 请将程序补充完整,使程序在运行时输出: Derived:d=1 Base:b:2 Base:b=2 Base:b=2