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1.
3000 6000 9000 3x
2.
83 90 101 b-2
3.
13 3n+1
4.
⑴75x
⑵6+a
⑶90-a
⑷(180-x)÷2 180-2x
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05网免费提供各类练习与测试答案,请牢记零五网网址:05W.CC
1.
3000 6000 9000 3x
2.
83 90 101 b-2
3.
13 3n+1
4.
⑴75x
⑵6+a
⑶90-a
⑷(180-x)÷2 180-2x
http://m.ksjqmj.com/wunianjidaan/14672.html
推荐访问