天山里的一道题

urakee

What is the value of the integer n?
(1) n(n + 2) = 15
(2) (n + 2)^n = 125

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C，我觉得应该是B啊

dingshuaijun

选B