为庆祝建党100周年,某校开展“唱爱国歌曲,扬红船精神”大合唱活动.规律是:将编号为A,B,C的3张卡片(如图所示,卡片除编号和内容外,其他完全相同)背面朝上洗匀后放在桌面上,参加活动的班级从中随机抽取1张,按照卡片上的曲目演唱.
(1)七年一班从3张卡片中随机抽取1张,抽到C卡片的概率为;
(2)七年一班从3张卡片中随机抽取1张,记下曲目后放回洗匀,七年二班再从中随机抽取1张,请用列表或画树状图的方法,求这两个班级恰好抽到同一首歌曲的概率.
---The sports shoes must be Linda’s.
---No,they_____be.They’re too small forher.
---What are the people in Korea supposed to do when they meet for the first time?
---They are supposed to_______.
---______do you go hiking?
---Once a week.
---_____did you tell him about the news?
---By____ane-mail.
---Wouldyoumind______yourbike?
--No,not at all.I’l lput it under the tree right away.
---Couldyoutellme_____?
---Becauseshelikesherstudentsverymuch.
---_____you_____outtheproblem,Sam?
---Notyet,butI’m going to.
---Someoftheplasticbagscan’t______afterJune1.
---Yes,peoplewilluseenvironmentalbagsinstead.
---Alltheclerkswenthome_____Mr.Wang.Why?
---Becausehehadtofinishhiswork.
---Can you_____your little brother?I’mbusynow.
---OK.I’ll do it right now.