138． After using a C0 portable extinguisher，it should be ______.
举一反三
- 80. After using a Halon extinguisher, it should be ______.
- In order to discharge a CO2 portable fire extinguisher, the operator must FIRST ______.
- If heavy smoke is coming from the paint locker,the first firefighting response should be to（）. A: release the CO fiooding system B: open the door to evaluate of the fire C: enter and use a portable extinguisher D: secure the ventilatio
- After launching, an inflatable raft should be kept dry inside by ___. A: opening the automatic drain plugs B: draining the water pocket C: using the electric bilge pump D: using the bailers and cellulose sponge
- 中国大学MOOC: 下面程序执行后的输出结果是：#include <iostream>using namespace std;void swap1(int c[]){int t;t=c[0];c[0]=c[1];c[1]=t;}void swap2(int c0,int c1){int t;t=c0;c0=c1;c1=t;}int main( ){int a[2]={3,5},b[2]={3,5};swap1(a) ; swap2(b[0],b[1]);cout<<a[0] <<a[1] <<b[0] <<b[1];return 0;}