High-grade aluminum has been the standard material of choice for airplane wings for years. A new study suggests that a newer material, a metal foam made out of steel and epoxy glue, could be even stronger and more effective. The material is still just in testing, but from bug build to...
So we can say that commercial planes are almost made up of aluminum while the newer planes are made of composite materials. Sometimes military aircrafts are made up of a light alloy named titanium. Also the purpose of aircraft decides about which material is to be used for its body or ...
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You see, waste things can be ___ to life. A. pull down; bring back B. pulled down; brought back C. pull down; take away D. pulled down; taken away 相关知识点: 试题来源: 解析 B 【详解】 句意:——你知道这个飞机模型是用什么做的吗? ——来自拆除的旧建筑的废木材。你看,废物被重新...
—What about ___ model planes? —That’s a good idea. A. made B. making C. to making D. makes 相关知识点: 试题来源: 解析 B 【详解】 句意:——做飞机模型怎么样?——那是一个好主意。 考查非谓语动词。空处的动词在介词about之后,应用动名词形式。故选B。
—Do you know what the model planes are made of? —Waste wood from old buildings that were . You see, waste things can be to life. A. pull down;bring back B. pulled down;brought back C. pull down;take away D. pulled down;taken away 相关知识点: 试题来源: 解析 —你知道这个飞机...
6. Jack is trying to looking for a pair of shoes ___(make) in Italy. 7. I will leave school earlier to avoid ___(get) into a fight with them. 8. Planes, cars and trains are ___(use) by business people for traveling. 9. Jim found it ___(interest) to to fly...
Unit-5Whataretheshirtsmadeof?SectionA 1a—2d isknown1)TheGreatWall___(know)allovertheworld.2)Thestudents___(tell)toareoften___toldtakecareoftheirdesksandchairs.areused3)Planes,carsandtrains___(use)bybussinesspeoplefortravelling.iswidely4)Englishisverypopular.It___used(use)inmanyfields....
Read the full-text online article and more details about Why Other Planes Could Fall out of the Sky; It's Been an Enduring Mystery -What Made an Air France Jet Simply Plunge into the Ocean? One Year on, Investigators Have Uncovered What Really Went Wrong. and, Terrifyingly, It Could ...
3. The (produce) are sold in the supermarket.4.The hotel had a great ___(celebrate) for its opening. 5. Her ___ (speak) English is so good that we all think she must be from the USA.五、按要求完成下列句子(10分)1.The model planes are made by hand. (就画线部分提问) the ...