试题 试卷
题型:填空题 题类:常考题 难易度:普通
统计知识的综合应用8690 10
女生有
0.8÷0.2= 457+199= 745-198= 25%×48=
2.4×0.5= ÷ = 1÷ = 87.5%× =
2- - = ×2÷ ×2=
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