试题与答案

反常呼吸常发生于 A.单根肋骨骨折 B.多根肋骨单处骨折 C.多根肋骨多处骨折 D.

题型:单项选择题

题目:

反常呼吸常发生于

A.单根肋骨骨折
B.多根肋骨单处骨折
C.多根肋骨多处骨折
D.单根肋骨单处骨折
E.胸壁软组织损伤

答案:

参考答案:C

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题型:单项选择题

有以下程序:
#include <iostream>
#include <cmath>
using namespace std;
class Distance;
class point

public:
friend class Distance;
Point(int a,int B)

x=a;
Y=b;

void Print()

cout<<"X= "<<X<<end1;
cout<<"Y= "<<Y<<end1;

private:
float X,Y;

class Distance

public:
float Dis(Point &p,Point &q);

float Distance :: Dis(Point &p,Point &q)

float result;
result=sqrt((p.X-q.X)*(p.X-q.X)+(p.Y-q.Y)*(p.Y-q.Y));
cout<<result<<end1;
retUrn result;

int main()

Point p(10,10),q(10,30);
Distance d;
d.Dis(p,q);
return 0;

运行后的输出结果是( )。

A.10

B.30

C.0

D.20

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