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A 题组新编1.对于任意 x∈ R函数 f (x)都满足f(x +2 ) =f (2 - x) .(1)如果方程 f(x) =0恰好有 2 0 0 2个不同实根 ,则这些根之和为 ( ) .(A) 0 (B) 2 0 0 2 (C) 4 0 0 4 (D) 80 0 8(2 )如果方程 f (x +2 ) =0恰好有 2 0 0 2个不同的实根 ,则这些根之和为 ( ) .(A)
The new group A is 1. For any x ∈ R function f (x) satisfies f(x +2) = f (2 - x) . (1) If the equation f(x) = 0 happens to have 2 0 0 2 With different real roots, the sum of these roots is (). (A) 0 (B) 2 0 0 2 (C) 4 0 0 4 (D) 80 0 8 (2) If the equation f (x +2) = 0 happens to have 2 0 0 2 different real roots, then the sum of these roots is () .(A)