额爆炸和火灾危险的建筑物、重要的电力设施应考虑()
A、直击雷
B、感应雷
C、间接雷
D、静电雷
参考答案:B
海绵窦血栓形成不累及的脑神经有()
A.第Ⅱ对脑神经
B.第Ⅲ对脑神经
C.第Ⅳ对脑神经
D.第Ⅴ1-2对脑神经
E.第Ⅵ对脑神经
下面程序的运行结果是 #include<iostream.h> class base protected: int a; public:base( )cout<<"0"; ; class basel:virtual base public: base1( )cout<<"1"; ; class base2:virtual base public:base2( )cout<<"2"; ; class derived:public base1,public base2 public:derived( )cout<<"3"; void main( ) derived obj;cout < < end1;
A.0123
B.3120
C.0312
D.3012