CHUZHONG化学问题把高锰酸钾和氯酸钾的混合物27g装入大试管加热制取氧气 ,到不再产生气体为止,代试管冷却后加入定

chuzhong 英语练习题
一.根据句意AND首写字母写出单词
WE EAT MOON CAKES ON A_____15TH.
DECEMBER IS THE T_______ MONTH OF THE YEAR.
二.阅读理解.
It's my 12th birthday today.So I get up early.When I have my breakfast,my classmates come.They give me some cards and presents.I am so happy to see them.We go to play tennis.Ten we eat McDonald's.
At about 5:00 in the afternoon we come back home .Mum makes a big
birthday cake and the cake has my name and"HAPPY BIRTHDAY!"on it .I get many birthday presents a yellow T-Shirt from Mum,a pair of sports my grandma.
1.The boy is ______years old today.
2.They have lunch at______.
3.When do they come back home?
4.Who make a birthday cake for him?
5.Mum buys him a______T-shirt.
有了把握快答吧

chuzhong初中yingyv英语 wubi务必zhengque正确
1.The child isn’t old enough to ＿ himself.A.wear B.dress C.put on D.Be in 2.＿ my surprised ,he passed the exam.A.For B.In C.To D.On 3.There is a new teacher building ＿ our school.A.in front B.in front of C.in the front of D.front

chuzhong 简便算法
1*3分之1 + 3*5分之1 + 5*7分之1 + ......+97*99分之1 + 99*101分之1
使用简便计算