double型public成员变量MAX_LENGTH，该值保持为常数0.01，则定义这个变量的语句是什么？A:public final double MAX_LENGTH=0.01 B:public double MAX_LENGTH=0.01 C: final double MAX_LENGTH=0.01 D:public const double MAX_LENGTH=0.01 答案: public final double MAX_LENGTH=0.01