A. 所有的有理数都能用数轴上的点表示              B. 符号不同的两个数互为相反数

C. 有理数分为正数和负数                                  D. 倒数等于本身的数是1、0、-1

Which of the following statements is correct? (   )

A. All rational numbers can be represented by points on a number line.     
B. Two numbers with different signs are opposite to each other.

C. Rational numbers are divided into positive and negative numbers.    
D. The numbers whose reciprocals are equal to themselves are 1, 0 and-1.