就是这道?题干式啥意思啊,谁能翻译一下,明天考试,极度恐慌中。。。 If 500 is the multiple of 100 that is closest to x and 400 is the multiple of 100 that is closest to y, which multiple of 100 is closest to x+y? (1) x<500 (2) x<400 (A) statement (1) alone is sufficient; (B) statement (2) alone is sufficient; (C) Both (D) Each (E) Neither