23. 若phpo8mlDw的相對極大值為a,相對極小值為b,則 a + b = ?
(A)phpkAPtQe
(B)phpksf4XN
(C)phpj2WNhq
(D)php7eMzrZ

答案:登入後查看
統計: A(12), B(22), C(44), D(7), E(0) #1585163