数学高手请进

alexshengUID: 166979

If J, S, and V are points on the number line, what is the distance between S and V?
(1)          The distance between J and S is 20.
(2)          The distance between J and V is 25.
       
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.

答案选E,可是我觉得好像是C。有点迷惑。请大侠们指教

stephanie_sisuUID: 201114

J、S、V的排列顺序不知道的话没法计算SV之间距离的吧？

magic_zhaoUID: 2137791

应该是按照题目说的J,S,V就是它的排列顺序了。

chenxu200312UID: 2245147

毛毛球版主一语道破关键

chenxu200312UID: 2245147

谢谢啊