有哪些舞蹈简单而又合适四年级的女生跳？ t-aran4的田园日记四个人跳的舞蹈动作很少基本上都是重复的音乐也很嗨 少女时代的舞蹈都可以不过就是要九个人少时的舞蹈有可爱的又帅气的都很...
四年级英语
20道解方程四年级
20道解方程四年级？
(1)2x+8=16 (2)x/5=10 (3)x+7x=8 (4)9x-3x=6 (5)6x-8=4 (6)5x+x=9 (7)x-8=6x(8)4/5x=20 (9)2x-6=12(10)7x+7=14 (11)6x-6=0(12)5x+6=11 (13)2x-8=10 (14)1/2x-8=4 (15)x-5/6=7(16)3x+7=28 (17)3x-7=26 (18)9x-x=16(19)24x+x=50 (20)6/7x-8=4 (21)3x-8=30(22)6x+6=12(23)3x-3=1 (24)5x-3x=4 (25)2x+16=19 (26)5x+8=19 (27)14-6x=8 (28)15+6x=27 (29)5-8x=4 (30)7x+8=15
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