腹腔镜胆囊切除术后胆道损伤的类型有
A.胆管的撕裂伤
B.胆管横断伤
C.胆管穿孔
D.胆管狭窄
E.胆瘘
参考答案:A,B,C,D
下列程序的运行结果是______。 #include<iostream.h> class Sample int a; public: Sample(int aa=0)a=aa; ~Sample()cout<<“Sample=”<<a<<‘‘; ; class Derived:public Sample int b; public: Derived(int aa=0,int bb=0):Sample(aa)b=bb; ~Derived()cout<<“Derived=”<<b<<“; ; void main() Derived d1(9);
顺序表中,插入一个元素所需移动的元素平均数是()。
A.(n-1)/2
B.n
C.n+1
D.(n+1)/2