Earth is our only home in universe.If we don't protect it from now on,we will have nowhere to go when the environment being ruin.Look at what we have done to our matherland. We let out too much exhaust gas that our atmosphere is no longer clear and health for breath.In many big cities,we can hardly see a bright blue sky. We use as much resourse as we can find,then turn them into rubbish.These rubbish is taken up more and more space in our planet. We also pollute water.Fishes and other beings are suffering to our mistakes.Some are died out,Some are dying out in future. All of us must do something to protect our earth. Take a bus instead of private car;use goods that are made of recycle material.Many ways we can take in daily life should do good for our better future.
最新问答: 翻译吾今然后知势之足以变易是非也 离子可不可能脱离化合物形式存在如果不能 为什么 给KMNO4通电 会一边有颜色 一边没颜色 还解释说由于正负离子各往+ I have some spare pictures of wild animals in Sichan.I can__ 某市今年1月1日起调整居民用水价格,每立方米水费上涨25%,小明家去年12月份的水费是18元,而今年5月份的水费是36元 一辆汽车从甲地到乙地,第一小时行了全程的26%,第二小时行了全程的30%,还剩220千米,甲,乙两地全长多少千 稀释(枫树,金芒果胶水)的稀料用什么好?除了二甲苯,甲醛,有没有味道小的 小于是坡度陡还是坡度缓?某地的坡度小于另一个地方,小于是比它陡还是比它缓? 读句子,加上适当的标 读句子,加上适当的标点符号. 1.一颗( )两颗( )一直数到了几百颗( Whant can we do to learn English better?____ ____we lern eng If we want to have a bright future,we must learn to act in w 怎么测 荧光光谱与激发光谱?用什么仪器? 已知函数f(x)=(x2+ax-2a2+3a)ex(x∈R),其中a∈R. )当a不等于2/3时,求函数f(x)的单调区 ADIDAS的音标是什么 A+B+C,要先算A+B,这样计算的根据是什么? 齿轮模数,分度圆直径怎么算?不要M=D/Z 正弦式电流在一个周期内出现几次峰值 若方程x-3的绝对值=1的解也是方程6x-m=2x+1的解,球m的值 CuSO4+H2SO4==?生成Cu2S还是CuS?为什么 已知向量a=(sinwx,-cosw).b=(sinwx,-3coswx),c=(-coswx,sinwx),(w>0) 思维导图问题 急1)如果我在做的是数学的思维导图,要是想到了与数学毫不相干的东西也要写上去吗?如果写上了还用再继续联想这