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形如f(x)=ax+b/x(a,b∈R+,x≠0)的函数,在此不妨把它叫做“对钩”函数;在近几年高考试题中时常涉及,特别是它的单调性及其应用尤为广泛.
In this case, it may be called “hooking” function; In recent years, the college entrance examination questions often involve, In particular, its monotony and its application are particularly widespread.