在开掘施工中,贯通警报在煤巷炮掘施工时()下发,煤巷机掘施工()米下发,岩巷炮掘施工()米下发。
参考答案:贯通前两天;30—40;20—30
下列程序的输出结果是【 】。 #inClude<iostream> using namespace std; class Test { public: Test() {cnt++;} ~Test(){cnt--;} static int Count() {return cnt;} private: static int cnt; }; int Test::cnt=0; int main() { cout<<Test::Count()<<"; Test t1,t2; Test*pT3=new Test; Test*pT4=new Test; cout<<Test::Count()<<’’’’; delete pT4; delete pT3; cout<<Test::Count()<<endl; return 0; }
可转换债券转换成股份的计算公式为可转债的手数乘以1000除以当次转股初始价格。( )