试题与答案

下列有哪些说法是正确的()。A.投资者投入的资金是保险经纪人资金的惟一来源 B.保险

题型:单项选择题

题目:

下列有哪些说法是正确的()。

A.投资者投入的资金是保险经纪人资金的惟一来源

B.保险经纪人的收入正由服务费收入形式向佣金收入形式转变

C.服务费逐渐成为保险经纪人之间竞争的武器

D.佣金收入是保险经纪人收入的惟一来源

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C

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若有以下程序: #include 〈iostream〉 using namespace std; class A { private:int x; public:int z;void setx(int i){ x=i;}int getx (){ return x;} }; class B : public A { private:int m; public:int p;void setvalue(int a,int b, int C){ setx (A) ; z=b; m=c;}void display(){ cout〈〈getx()〈〈","〈〈z〈〈","〈〈m〈〈end1;} }; int main ( ) {B obj;obj.setvalue(2,3,4);obj.display();return 0; } 程序运行以后的输出结果是( )。

A.产生语法错误

B.2,3,4

C.2,2,2

D.4,3,2

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题型:单项选择题

A pilot cannot fly a plane by sight alone. In many conditions, such as flying at night and landing in dense fog, a pilot must use radar, an alternative way of navigating. Since human eyes are not very good at determining speeds of approaching objects, radar can show a pilot how fast nearby planes are moving. The basic principle of radar is exemplified by what happens when one shouts in a cave. The echo of the sounds against the walls helps a person determine the size of the cave. With radar, however, the waves are radio waves instead of sound waves. Radio waves travel at the speed of light, about 300, 000 kilometers in one second. A radar set sends out a short burst of radio waves: Then it receives the echoes produced when the waves bounce off objects. By determining the time it takes for the echoes to return to the radar set, a trained technician can determine the distance between the radar set and other objects. The word "radar," in fact, gets its name from the term "radio detection and ranging." "Ranging" is the term for detection of the distance between an object and the radar set. Besides being of critical importance to pilots, radar is essential for air traffic control, tracking ships at sea, and for tracking weather systems and storms.

Which type of waves does radar use

A.Sound.

B.Heat.

C.Radio.

D.Light.

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