The principal should create a good campus environment, lets the student in a comfortable environment in which to learn, to enable students to do any work, but also to listen to the voice of students. Teachers should give students more independent thinking of the time, the teacher's smile is the sunshine, so in the not too serious in class. Parents should understand their children, do not give children too much pressure, do not give children something they don't like the course
最新问答: 向氨水中滴加稀盐酸,氨水电离程度变化 修改病句:这是有趣的一本童话故事书. 将含1molNaOH的稀溶液与含1molCH3COOH的稀溶液混合后放出的热量小于57.3 简单数学一道 麻烦帮帮忙等腰梯形的中位线长为m,且对角线互相垂直,则此梯形高为?答案是m 但为什麽啊? 如果整数A的末两位数字组成的数能被4整除,那么A就能被4整除.试说明理由 Y’’-2Y=0的特征根? 一个三点水加个睿读什么? 下列命题正确的个数是( )①若直线a//b,b包含于α,则a//α②若直线a//α,b包含于α,则a//b③若直线a// 矩形ABCD中,AB=1,BC=根号3,AC与BD相交于点O、则tan∠AOB等于多少 计算(X+3Y+2X)(-X-3y-2Z)计算(X+3Y+2X)(-X-3y-2Z)计算(X+3Y+2X)(-X-3y- buy something 是用for somebody ,还是用to somebody 维持原判用英文怎么说如题 地球吸引苹果,苹果吸不吸引地球 衣衫褴褛英语怎么说 合同原件用英文怎么说 为什么 a outgoing girl 前面的连词要用a而不是an 有一道数学题是:4:( )=24,四比什么等于二十四. 用(240+20)÷6=编一道数学应用题 (lg2^2+1)(lg2)^2+1=? 抛物线y=-x2-2x+m,若其顶点在x轴上,则m=______.