TT GWD1-16

亦优

Q16:
IfJ, S, and V are points on the number line, what is the distance between S andV?
(1)     Thedistance between J and S is 20.
(2)     Thedistance between J and V is 25.
                 
A.Statement (1) ALONE is sufficient, but statement (2) alone is notsufficient.
B.Statement (2) ALONE is sufficient, but statement (1) alone is notsufficient.
C.BOTH statements TOGETHER are sufficient, but NEITHER statementALONE is sufficient.
D.EACH statement ALONE is sufficient.
E.Statements (1) and (2) TOGETHER are NOT sufficient.


无论J,S,V怎么排列都可以求出来，为什么就是不行呢，我选的C
麻烦大家帮下忙