八一班平均数85,中位数80,众数85,八二班平均数85,中位数80,众数85,.结合平均成绩和中位数看那班好

145454545

把英语继续保持下去,语文嘛,其实初中最好学的就是语文,中学的语文有前25分是基础,只要把课内重点字词,字音掌握,还有就是语文老师认为是重点的古诗文全部背下来,而且还要一字不差的全部会默写,这样基础是没问题了,至于阅读题,推荐你一本书《阅读180篇》只要你把那里边的题全部做透,阅读就没问题了,作文就在多看,多练,每天看3篇文章,写一篇日记,你的语文就可以得到90分以上了.数学的几何,把定义全部记下来,然后有依据的写每一道几何题,数学的几何也就没什么问题了.物理就更简单了,把老师教你的几个公式全部记熟,把老师要求掌握的几个定义全部背下来就行了.其实9年级数学的2次函数才叫难,希望你下次能取得好成绩.

现在向我们走来的是气宇轩昂的八年一班,他们英姿飒爽,用坚定的决心去迎接胜利!

Class Eight English

1、设团员数为X,非团员数为Y,则有X：Y＝2：1（X＋5）：（Y-5）=7：2可以算出：X=30原来班内团员人数30人.2、设甲每小时种棵树,则乙每小时种X＋3棵树,则有60／X＝66／（X＋3）可以算出X＝30,甲每小时种30棵树,乙每小...

（1）方案（Ⅰ）不可行.缺少证明三角形全等的条件.
方案（Ⅱ）可行.
证明：在△OPM和△OPN中
OP=OP
PM=PN
OM=ON
∴△OPM≌△OPN(SSS)
∴∠AOP=∠BOP(全等三角形对应角相等)
（2）当∠AOB是直角时,此方案可行.
∵四边形内角和为360°,
又若PM⊥OA,PN⊥OB,∠OMP=∠ONP=90°,∠MPN=90°,
∴∠AOB=90°
∵若PM⊥OA,PN⊥OB,且PM=PN
∴OP为∠AOB的平分线.(到角两边距离相等的点在这个角的角平分线上)
当∠AOB不为直角时,此方案不可行.

Hello, my name is***.I'm sixteen years old. And I am a senior high school student. My hometown is ***, and it is such a beatiful and famous city in China. Though my parents loves me so much and they are willing to fulfill most of my possible wishes, I still feels lonely sometimes for I'm an only child. Lucky for me, most of my friends are only child too, so that we can be each other's company and we can defeat the loneliness. So I love my friends like family. Sample1:
My name is __________ . I am from ______________ . There are _______________ people in my family. My father works in a computer company. He is a computer engineer. My mother works in a international trade company. She is also a busy woman. I have a older sister and a younger brother. My sister is a junior in National Taiwan University. She majors in English. My brother is an elementary school student. He is 8 years old.
Because of my father, I love surfing the Internet very much. I play the on-line game for about 2 hours every day. I wish I could be a computer program designer in the future. And that is why I am applying for the electronics program in your school.Sample2:
My name is___________ . There are 4 people in my family. My father is a Chemistry teacher. He teaches chemistry in senior high school. My mother is an English teacher. She teaches English in the university. I have a younger brother, he is a junior high school student and is preparing for the entrance exam.
I like to read English story books in my free time. Sometimes I surf the Internet and download the E- books to read. Reading E- books is fun. In addition, it also enlarges my vocabulary words because of the advanced technology and the vivid animations.
I hope to study both English and computer technology because I am interested in both of the subjects. Maybe one day I could combine both of them and apply to my research in the future.Sample3:
I am ___________. I was born in _________ . I graduate from senior high school and major in English. I started learning English since I was 12 years old. My parents have a lot of American friends. That’s why I have no problem communicating with Americans or others by speaking English.
In my spare time, I like to do anything relating to English such as listening to English songs, watching English movies or TV programs, or even attending the activities held by some English clubs or institutes. I used to go abroad for a short- term English study. During that time, I learned a lot of daily life English and saw a lot of different things.
I think language is very interesting. I could express one substance by using different sounds. So I wish I could study and read more English literatures and enlarge my knowledge.

1、设团员数为X,非团员数为Y,则有
X：Y＝2：1
（X＋5）：（Y-5）=7：2
可以算出：X=30
原来班内团员人数30人.

1)
0.9(50 - x) + 0.4x ≤ 36 ① ===> x≥18
0.3(50 - x) + x ≤ 29 ② ===> x≤ 20
l8≤ x≤20
x = 18,19,20
(2)
① 制作A型陶艺品32件,制作B型陶艺品18件；
② 制作A型陶艺品31件,制作月型陶艺品19件；
③ 制作A型陶艺品30件,制作月型陶艺品20件

挑战自我,超越梦想,初二一班,共创佳绩!（你几年级啊,说得不太明确）