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近年来,经常在高考、高考模拟以及竞赛中出现与抽象函数有关的试题．一般地,抽象函数是指没有明确给出具体的函数表达式,只是给出具有某些性质的函数．由于抽象函数概念抽象,隐蔽性强,灵活性大,综合程度高,使得有些考生望而却步,实际上,只要掌握一定的求解策略,面纱便被揭开,问题就柳暗花明了．
In recent years, examination questions related to abstract functions often appear in college entrance examinations, college entrance examination simulations, and competitions. In general, an abstract function means that a specific function expression is not explicitly given, but only a function with certain properties is given. Due to the abstraction of the concept of the abstract function, the concealment is strong, the flexibility is great, and the comprehensive degree is high, which makes some candidates stop at it. In fact, as long as you master certain solving strategies, the veil will be opened and the problem will be resolved.