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题库 / GMATAdvanced-DS-81
Each entry in the multiplication table above is an integer that is either positive, negative,or zero. What is the value of a?
(1)h≠0
(2)c=f
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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注意零的特殊情况
什么特殊情况啊？选的B。。
条件2: c=f
a*c=f
c*(a-1)=0
c=0或a=1, insufficient
谢谢呀
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