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题库 / GMATAdvanced-DS-75
If b is an integer, is ~$\sqrt{a2+b2}$~ an integer?
(1)a2+b2 is an integer.
(2)a2-3b2=0.
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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这题什么意思啊
根号下（a的平方+b的平方），是不是整数
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