有如下程序段，对应正确的数据输入是（）。 float x,y; scanf(%f%f, x, printf(a=%f,b=%f, x,y);

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【单选题】【消耗次数：1】

① 2.04

② 2.04, 5.67 5.67

③ a＝2.04, b＝5.67

④ 2.055.67

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