5. If f ′ is continuous on R = (−∞,∞) and 5e9d3f74e3566.jpg f(x) = 0 , then 5e9d3fa7e49f7.jpg


(A)O
(B)X 

答案:登入後查看
統計: A(1), B(0), C(0), D(0), E(0) #2264869