单项选择题
A) 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, B) 2, 1, 4, 3, 6, 5, 8, 7, 0, 9, C) 0, 9, 8, 7, 6, 5, 4, 3, 2, 1, D) 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
A) pk=k; B) pk[0]=&k[1][2]; C) pk=k[0]; D) pk[1]=k;
A) double myadd(double a, b); B) double myadd(double, double); C) double myadd(double b, double a); D) double myadd(double x, double y);