Destruction of the environment is one of the most serious challenges we face.We live in the same world.We need to know that looking after the environment is important.All people on the earth need to increase environmental awareness.Although greening barren hills and improving ecological environment are not something that will bring quick success and in instant benefits,we still need to preserve our earth.The effects of global warming,while not immediate,are potentially catastrophic,and more people know this.So people are becoming more sensitized to the dangers threatening the environment.We have a moral obligation to protect the environment.We only have one earth.Why hesitate?Let’s do it.
最新问答: 已知x的平方+x=1,求x的四次方+2x的三次方--x的平方-2x=2011的值 今有下列四种溶液:1.c(H+)=0.1mol\L的盐酸 2.c(H+)=0.1mol\L的硫酸 3.C(H+)=0.1 粉水晶-追随挚爱【chap.2】 作文 爱的报答 作文 几道解方程的题(1)7/16:X=7/8除以32/9 (2)0.12X5-1/2X=3/5(3)1.6X+1.5*4=1 类推是常用的思维方法.以下类推正确的是( ) 机械英语翻译 求1 .It is one of a the most valid method for adopting 3位文学家和3位科学家 对天空的描述 写明出处和摘录 他们描述的特点 和他们的不同点和造成不同点的原 下列各数的比较大小中,正确的是( ) 英语翻译英语翻译 never feeling any need to leave the computer.书上翻译成了 “琴棋书画”和“笔墨纸砚”的词语结构相同吗 求不定积分cosx/4-sin^2x desert作名词,是可数的吗? 把七分之八平均分成四份,每份是多少米,每份是多少? 如图所示,小华同学乘船行驶在湖面上(小华距湖面的高度不计),船行驶到点A处时,小华测得一跨湖大桥桥塔顶端点C的仰角为35 如何证明三点A(-2,12)、B(1,3)、C(4,-6)在同一直线上? 下列做法中,可以防止噪声产生的是( ) A.窗户安装双层中空玻璃 B.市内禁止机动车鸣笛 C.工厂工人戴防噪声耳罩 D 小杰收集卡片90张,小军收集卡片60张,小明收集卡片的张数是小军与小杰收集总和的[2/5],小明收集多少张? the pen is in my schoolbag[对没有in my schoolbag部分提问】 -------- 小,用英语咋说