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题型:填空题 题类:期中考试 难易度:较易
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已知函数\(f\left(x\right)=\left\{\begin{array}{ll}x-1,&x\geqslant 0\\ {{x}^{2}},&x< 0\\\end{array}\right.\)则\(f\left(f\left(-2\right)\right)=\)__________.
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