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求解 高職數B
(D)20.設a、b爲實數,且不等式-x²+6x+b>0與不等式|x+a|<5的解完全相同,則
a+b=?
(A)-13 (B)-7 (C)7 (D) 13。
【106 統測A】
B】
1--9
az
(149) (5+9-) 6 st 9p+ -9-
19
029-X9 - X
yo.
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