第1个回答 2014-02-27
额
追答帮我
追问几年级的
追答七
追问哦 图发清楚点
追答
①∵∠B=∠DAC-∠3=∠EAC+∠2-∠3
∠D=∠BAC-∠4=∠EAC+∠1-∠4，
又∵∠1=∠2，∠3=∠4，∠EAC=90°
∴∠B+∠D=2∠EAC=180°
∴BC∥DE
9 10谢谢！
追问看不清
第2个回答 2014-02-27
1 how to make food
2 how to make money
3 learn from the scientific study
4 make the customers eat faster
5 light color
6 spend much time eating
7 fast food restaurant
who is the owner of the garden?
Who owns this garden?追问
2 how to make money
3 learn from the scientific study
4 make the customers eat faster
5 light color
6 spend much time eating
7 fast food restaurant
who is the owner of the garden?
Who owns this garden?追问
？？！
请问，你在说什么
追答你不是要上面的英语题的答案吗，这就是答案呀
追问看不懂啊
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