【GMAT考满分数据洞察DS题库】In the figure above, what is the value of x + y_真题_答案

题目内容

In the figure above, what is the value of x + y?

(1) x = 70

(2) $\Delta ABC$ and $\Delta ADC$ are both isosceles triangles.

AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
CBOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
DEACH statement ALONE is sufficient.
EStatements (1) and (2) TOGETHER are not sufficient.

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正确答案: E

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