1. help!!!!!!十万火急!!!! 救命啊!!!!
2. help!!!!!!十万火急!!!! 救命啊!!!!
3. help!!!!!学渣!求解!!!!
4. help me!!!!!!!!!!!!!!!!!!!!!!!!!!!!学霸们
5. Help !!!!!!! 高悬赏啦
6. 学霸们!!!help me!!!真的急用!!!谢谢了!!!
7. 15题啊!help!!!!!!!!!!!!!!!!!!!!!T_T
解:因为∠COE=90°所以∠DOE=90°
因为∠COF=35°,所以∠FOE=90°-35°=55°
所以 ∠AOE=2*55°=110°
所以∠EOB=180°-110°=70°
所以 ∠BOD=90°-70°=20°
8. help!!!、!!!!!!!!
(4)4/51/4=1/5
4/5-1/5=3/5
(5)2/5÷12=1/30
1/30×20=2/3