A:向一定量的二氧化锰中加入过氧化氢溶液
B:加热一定量的高锰酸钾固体
C:向两份相同的等量稀盐酸中分别加入过量锌粉、镁粉
D:将水通电电解一段时间
如图,AB∥CD,以点A为圆心,小于AC长为半径作圆弧,分别交AB,AC于E,F两点,再分别以E,F为圆心,大于 EF长为半径作圆弧,两条圆弧交于
点P,作射线AP,交CD于点M.若∠ACD=114°,则∠MAB的度数为____°.
如图,∠ACD=∠A,∠BCF=∠B,则∠A+∠B+∠ACB等于____
根据短文,现在请同学们为Mr. Cao填完整他工作日的日程安排表 Mr. Cao is a teacher in a middle school.He has a lot of things to do from Monday to Friday.On Monday and Tuesday morning he has three speaking classes.On Thursday he has two writing classes in the morning and one in the afternoon.He plays ball games after class on Monday and listens to music on Tuesday afternoon.He doesn’t have classes on Wednesday or Friday.He works on the computer on Wednesday morning.He can speak a little Japanese.So he takes Japanese classes that afternoon.On Friday morning.Mr. Cao meets old friends.In the afternoon,he has a rest at home
下列说法中属于道教精神的是( )