As a middle school student, i should do what i can to contribute to the prosperity of environment. Paper and glass could be recycled and garbage should be divided in to several kinds according to their features. Moreover, we should turn down the light when we left our classroom and cut off the tap when we walked out of the toilet. Grass is good for our air and we cannot step on them. Of course, flowers and their food cannot be picked as well. Burning something unuseful should also be forbidden. When we go to school, we can choose bicycles, or go there on foot. In order to protect tress from being cut, paper-cups should not be used too much, and we can plant trees every year on small hills.
最新问答: 双曲线的题已知双曲线x^2/4-y^2/b^2=1(b∈N)的两个焦点F1、F2,P是双曲线上的一点,且满足|PF1|· 一阶线性方程xf'(x)-f(x)=3/2ax,是怎么求得[1/xf(x)]'=3/2a的? 英语作文六年级字少beforeandnow与学校的变化有关 数学蕴含了许多哲理 用英语怎么说 一个书架上层的书比下层多125本,如果从上层拿出30本放入下层这时下层的本数是上层的五分之四,书 50以内既能被3整除,又能整除4的数 英语翻译那样的我也会翻译~好的追20``````````达人们给点力啊PS我想your shadow可以译成“你的剪影” 增函数乘以增函数在什么条件下是增函数?减函数乘以减函数在什么条件下是什么函数? 人字下面加个山字怎么打?这是我家乡的地名 cap和jeans的音标 《阿凡达》是一部运用3D技术制作的电影,目前已创造了超过27亿美元的全球票房,并带动了3D相关产业的发展。这体现了 六年级的数学日记800字 比较自来水和菜油不同的地方 1.颜色2.气味3.味道4.质量5.形状 是不是加入铁粉,可以使使Ag+还原为金属银 “文具 铅笔”与“医生 病人”两组词语的隶属关系是一样的吗 35平方米等于多少公顷,公顷和平方米之间是怎么换算的? 营养的英语怎么拼写? the children aren't watching tv. 试分析题图所示逻辑电路,写出逻辑表达式和真值表,并描述其功能.(最右边的是四输入 谁知道监视、人迹罕至、耐心、开拓、畅通无阻的反义词.险峻、畅通无阻、颠簸、坎坎坷坷、目不转晴的近义
相关问答: 反应