单选题：有如下类定义： class Point{int xx．yy； public： Point()：xx(0)，yy(0){

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  • 题目类型：单选题
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题目内容：
有如下类定义：
class Point
{
int xx．yy；
public：
Point()：xx(0)，yy(0){}
Point(int x，int Y=0)：xx(X)，YY(Y){}
}；
若执行语句
Point a(2)，b[3]，幸c[4]；
则Point类的构造函数被调用的次数是（　　）。 A．2次
B．3次
C．4次
D．5次

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