【单选题】有如下程序: #include <iostream> void fun (int& x,int y){int t=x;x=y;y=t;} int main() { int a[2]={23,42}; fun (a[1],a[0]; std::cout<<a[0]<<”,”<<a[1]<<std:: ond1; retum0; }执行后的输出结果是______ 。
【简答题】Howard sat looking carefully at the busy traffic in the street through his glasses.
【判断题】He broke his glasses.
【单选题】He pushes his glasses up his nose.
【单选题】以下程序的运行结果是( )。 #include<iostream.h> void sub(int x,int y,int*z) {*Z=y-x;} void main() {int a,b,c; sub(10,5,&a); sub(7,a,&b); sub(a,b,&c); cout<<a<<“,”<<b<<“,”<<c<<endl;}
【单选题】The man dropped his glasses on the floor.
【单选题】下列关于表面活性剂的 HLB 值叙述错误的是