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【单选题】
根据定义和数据的输入方式，输入语句的正确形式为： 已有定义：float x,y; 数据的输入方式：4.3↙ 2.45A.
scan( ” %f,%f ” ,&x,&y);
B.
scanf( ” %f%f ” ,&x,&y);
C.
scanf( ” %3.2f └┘ %2.1f ” ,&x,&y);
D.
scanf( ” %f%f ” , x, y);
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