实验小学六一儿童节开庆祝会,在操场上插彩旗.按照3面、2面黄旗、2面蓝旗、1面绿旗的顺序,插到第20面是
实验小学六一儿童节开庆祝会,在操场上插彩旗.按照3面、2面黄旗、2面蓝旗、1面绿旗的顺序,插到第20面是
数学人气:758 ℃时间:2019-10-17 01:07:28
优质解答
第20面是黄旗.
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