用性质描述法你所在班级所有同学构成的集合-搜答案-搜搜考试网

Hello,todayIwillintroduceafriendtoyou.Lucy,a16-year-oldgirlinclass1.sheisabearuifulgirlfromChina.She

Myclassroomisonthethirdflooroftheteachingbuilding.Itisclass5,grade1.Ourheadteacherteachesusmath,whic

Everybodyneedssomebody,somebodywhomiscalled"Friend"."Afriendinneedisafriendindeed."Ifonlythatkindoff

你好,您是年级班姓名吗?我是班长小红,接到我通知后请于年月日去学校报到.

所在系=LOOKUP(MID(C3,5,2),{"01","02","03"},{"中文系","外语系","数学系"})班级=MID(C3,3,2)&MID(C3,7,2)然后往下拉动即可.

{我班的同学}.{n|n=2k+1,k∈N}或{正奇数}.{x|x<=3,x∈R}.{x||x|=3,x∈R}.{P|P在平面a内,OP=3cm}.{矩形}.

成事不说,遂事不谏,既往不咎

(1){山东省省会}.（2）{×校×年×班同学}.(3){正奇数}.(4){x||x|=3,x∈R}.(5){x|4x-5

{我们班的全体学生},这就是性质描述法

总体：全体学生每人每周的零花钱样本：我班学生每人每周的零花钱

再问：再问：这两种写法都对吧？再答：嗯嗯

Ihaverecentlymadeasurveyamong30boysand30girlsinmyclassabouttheirpurposesofsurfingtheInternet.Thegirl

我不知道“弊端并劝导于此的同学合理的利用时间”什么意思,butillwriteyouanessayanyways:)写一部分:Recently,astrategyandmanagementgameon

那就只做下面三题吧.（1）先解方程：x^2+5x+6=0,也就是(x+2)(x+3)=0,解出来是-2和-3.所以所求的集合是{-2,-3}.（2）还是先解方程：x^3+2x^2-3x=0,也就是x(

{x|x=-1或1}

小刚现先告诉两个同学（三个也可以）再叫那两个同学告诉另两个同学,接着再循环下去...

helloeveybody,goodtoseeyouhere.I'mveryexcitedaboutthisinternationalsodality.i'veknownalotofforeigner

IaminClassFive,GradeSeven.我在七年级五班介词用in不明白的再问哟,请及时采纳,多谢!再问：谢谢，那介绍自己的学校呢？再答：用：Thisismyschool.It'sabigs

长的帅,很幽默,乐于助人

myclassislikeabigfamily.iloveitverymuch.inthebigfamilyhasmyfavouriteteachersandmylovelyclassmates.th