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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 虽然可以是加或减，但是也都能求出1@0的值............
太阴了.......
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