A:11010
B:01100
C:10111
D:00011
①可以通过抽签的方式担任国家的所有官职 ②有资格在“公民大会”上发言和表决 ③担任公职,参加国家政治活动,可以领取“津贴” ④选举权和被选举权范围扩大到妇女和老人
如图圆O的半径为3,∠BAC=30°,则弦BC=____
It's Sunday afternoon. The weather is fine. There is a football match between class 2 and class 4. Many students are watching. They're excited. Now, Zhang Wei has the ball. He passes it to Wei Kun. But Wei Kun can't kick the ball. Then John has the ball. The ball flies to Zhang Wei's arm. Zhang Wei is very angry. The ball files into the goal. How is Zhang Wei feeling? He is so happy! Class 4 won the game. Class 2 is very sad.
若函数y=cosx+α3(α∈0,2π)是奇函数 ,则α=( )