西周的众多诸侯是通过什么产生的( )
A:奴隶制
B:世袭制
C:分封制
D:禅让制
如图,A,B,C,D是⊙O上四个点,且弧AB=弧BC=弧CD,BA和CD的延长线相交于P,∠P=40°,则∠ACD的度数是( )
I get up at 6:30 in the morning. Then I wash my face and brush my teeth. I go to school at 7:00. I go to school by bike. Classes begin at 7:30. We have six lessons every day. We have three lessons in the morning and three in the afternoon. Classes are over at 5:00. I get home at 5:15. We have dinner at 6:00. I go to bed at 9:00.