六年一班女生人数是男生的1.2倍、女生比男生多 、 要算式、算式、、、
六年一班女生人数是男生的1.2倍、女生比男生多 、 要算式、算式、、、
数学人气:797 ℃时间:2019-10-17 14:35:52
优质解答
(1.2-1)/1=0.2,20%
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