个人客户经理或个人业务顾问在对单笔认购或累计追加购买单支产品低于300万元（不含）的客户进行风险评估时，应在评估后打印《评估问卷》，该《评估问卷》需由（）签字后盖网点业务用章，随当日凭证上交。

A、客户

B、经办人员

C、经办人员上级主管或其授权人员

D、任意柜员

[说明]
下面程序定义了一个类Shape及其成员函数，然后从类Shape派生出类Point、类Circle、类Cylinder，以及它们的成员函数。
[Java程序]
(1) Shape
public abstract void printShapeName(); //纯虚函数。
public double area()return 0.0;
public double volumn()return 0.0;

class Point extends Shape
private double x.y;
public Point (double a, double b)x=a; y=b;
public void setPoint (double a,double b)x=a;y=b;
final public double getX() return x;
final public double getY()return y;
public void printShapeName()
(2) ;


class Circle extends Point
private double radius;
public Circle(double r, double a, double b)
(3) ;
radius=r＞0 r:0;

public void setRadius (double r)
radius=r＞0 r:0;

public double getRadius () return radius;
public double area()return 3.14259 * radius * radius;
public void printshapeName ()
System.out.print ("circle: ") ;
;
;
class Cylinder (4)
private double height;
public Cylinder(double h, double r, double x, double y)
super (r, x, y) ;
height = h＞0 h:0;

public void setHeight (double h)
height = h＞0 h:0;

public double area () //计算表面积
return (5) ;

public double volumn ()
double r=super.getRadius () ;
return 3.14159 * r * r * height;

public void printShapeName ()
System. out .print ("cylinder: ") ;