As the mobile phone is more and more widely used in classroom,even on campus began to play popular mobile phone.With the mobile phone function is more and more intelligent,games,chat has become many student entertainment project,slowly,mobile phone start encroached on students learning time.At the same time,mobile phone also provides great convenience for our lives,interest relatives and friends very fast,very convenient.But in school we should put an end to the mobile phone.In class on mobile phone related class,in the class rules added to mobile phone use in the classroom,make students feel a heartfelt admiration and acceptance,the parents' meeting to inform parents of this provision,the parents cooperate with.
最新问答: 1、一元二次方程x²+x+4分之1=0的根的情况是() A 有两个不相等的实数根 B、有两个相等的实数根 忘不了老师对我的关怀 作文 如何提高下面语句的效率select * from(select a_month ,b_name ,count(DISTI weekend 分为动词和名词 分别怎么发音呢 已知数列{an}满足a1=2,an-an-1=3n,求an 动物园里有8只小猴4.5天共吃香蕉57.6千克.平均每只小猴每天吃香蕉多少千克? 二氧化硫气体可以用下面那个溶液吸收 ..求帮忙-- 试用“1,2,3,4,5,8"描述核酸的相应内容 菊花是一种短日照花卉,对日照时长非常敏感。某品种菊花只有当日照时长开始小于10小时30 分钟时才进入开花期。下表为武汉市 (2005•枣庄)班级组织有奖知识竞赛,小明用100元班费购买笔记本和钢笔共30件,已知笔记本每本2元,钢笔每支5元,那 如图,直线l1:y=kx+b平行于直线y=x-1,且与直线l2:y=mx+12相交于点P(-1,0). 五个成语连成一句话越多越好,急. 看书到底是看还是背?要怎样才能记住书的内容呢? 如果只说铁和氧气反应,那么应该是生成Fe2O3还是Fe3O4 关于红细胞双凹形状的一道生物题人类的红血球成熟后呈双凹的盘状并不具细胞核,下列何者不是此细胞构造的有利之处?(A)能提供 drink take some hot drinks madicine and(.) 1.M的分子式为C 2O H 14 O5.写出M在足量的NaOH溶液中发生反应的化学方程式 不等式组怎么解 谁知道DNA的转录情况?DNA的单链转录是否都一样? 已知n是正整数,且根号(2009n)是整数.(1)求n的最小值; (2)试写出满足根号(2009