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题库 / Prep2007E2-DS-6
The operation @ represents either addition, subtraction, or multiplication of integers. What is the value of 1 @ 0 ?
(1) 0 @ 2 = 2
(2) 2 @ 0 = 2
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
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条件2虽然有两个运算法则满足，但是带入1@0答案都等于1，所以条件2是满足的！不能因为人家有两个运算法则就算人家错
哈哈哈我也犯了这个错误
correct
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