单项选择题
In the series N1 , N2, N3 , N1=-1, and Nx+1=-1 Nx+x].（）
A. if Quantity A is greater;
B. if Quantity B is greater;
C. if the two quantities are equal;
D. if you cannot determine the relationship based on the given information.
点击查看答案
相关考题
（）
（）
