一氧化碳中毒会出现哪些典型症状?
参考答案:
典型症状有:头痛、头晕、四肢无力,恶心、呕吐、甚至昏迷,还可能出现脑水肿、心肌损害、肺水肿等并发症。
可引起胸痛的胸壁疾病是()
A.肺癌
B.肋间神经炎
C.自发性气胸
D.胸膜肿瘤
E.胸膜炎
下面程序的结果是 #include<iostream.h> class test private: int num; public: test( ); int getint( ) return num; ~test( );; test::test( ) num=0; test::~test( ) cout<<"Destructor is active"<<endl; void main( ) test x[3]; cout<<"Exiting main"<<endl;
A.Exiting main Destructor is active Destructor is active Destructor is active
B.Exiting main Destructor is active Destructoris active
C.Exiting main Destructoris active
D.Exiting main