浅谈山区公路桥梁设汁

复杂的地理环境和大量的构造物,给山区公路的养护和维修带来一定的困难,结构物的耐久性问题引起人们的进一步重视,也给设计提出了更高的要求.     

完形填空实战练习

A Directions:For each blank in the following passage there are four words or phrases marked A,B,C,and D.Fill in each blank with the word or phrase that best fits the context. The other day I drove to South Columbia to meet my friends in my used car.Though I had only been there once 1 and did not know the way very well.I was on the 2 after I had made some inquiries(询问).     

洪水来袭,爱心筑坝(英文)

Directions:Read the following passage.The passage is followed by several questions or unfinished statements.For each of them there are four choices marked A,B,C and D.Choose the one that fits best according to the information given in the passage.     

时代背后的我们

春去秋来,花开花谢,时间未曾漫长,耳旁轻风时时吟唱,一天又一天,一年又一年。一切都以迅雷不及掩耳的速度进行着,而我们,已不再是当年追赶夏天的小孩。社会说:"‘90后’的你们是幸福的一代,有着知识和物质的包裹,你们应该满足。"我们苦笑,社     

“余弦定理”一节的教材分析

(一)余弦定理一节的教材在本章教材中的地位与作用解三角形是三角基础知识一章教材的重点,是运用有关三角函数的知识去解决实际问题的重要内容.而余弦定理和正弦定理一样是解三角形的一个重要依据.在已知三角形的两边和这两边的夹角求第三边以及已知三边求角的问题,运用余弦定理可以解决.因此在充分理解定理的推导,正确掌握定理的表达式,并能熟练地应用它,是学好解三角形这部分教材的关键.故在教学中应和正弦定理一样予以重视,不应有所偏废.     

完形填空实战练习(五)

A Directions:For each blank in the following passage there are four words or phrases marked A,B,C,and D.Fill in each blank with the word or phrase that best fits the context. I grew up in a tiny Baltimore row house in a faraway mountain area.My parents(1)the necessities of life but they couldn’t give much more.If I asked my father for a pair of jeans,he would say,"If you want them,make the money and buy them yourself."He wasn’t being mean;he just couldn’t(2)     

完形填空实战练习

A Directions:For each blank in the following passage there are four words or phrases marked A,B,C,and D.Fill in each blank with the word or phrase that best fits the context. It was always thought that Treasure Island was the product of Robert Louis Stevenson’s imagination.However,recent research has found the true story of this exciting work.     

一束河流

人生最美的早晨应当如此：在一夜细雨之后的古镇醒来,黑色的木质窗棂之外是滴着水的屋檐,缭绕云雾,以及隐隐青山的轮廓。慢慢起床,到楼下的小咖啡餐厅喝一壶普洱茶,听到极有品位的店主女孩放男中音赵鹏清唱的老歌《被遗忘的时光》。但彼时听着这一首歌的时刻,却果真是美妙享受得遗忘了过去所有的时光。