123. 弱雙質子酸php4NYyBV的下列敘述何者錯誤?
(A)phpivV4ky
(B) phpobOy20
(C)phpkvoVPg
(D)phpTOc04O

答案:登入後查看
統計: A(18), B(16), C(17), D(307), E(0) #1576750