一个泵驱动两个串联的液压缸已知活塞直径d90活塞杆直径d60

英语急转弯:What animal can jump as high as a tree?1.Why is U the jolliest(最快乐) letter?2.When do peple have two mouths?3.What animal can jump as high as a tree?4.How many sides(面) does a circle(圆) have? 脑筋急转弯:What animal can jump as high as a tree?Thanks a lot! 我19岁 漂亮 女生 因为生病没钱治疗,3个月没治疗 难受死了 我也不念书了 我的生活没希望了,为什么?因为没有钱,我的生活没有希望了~为什么?为什么我应该是这样 我好嫉妒我们班同学都要考 我的生活没有希望怎么办我的身上有很多病 腿部畸形 大小脸 等等 我就不列举了 我现在虽然能工作 但是我每天都过得一点意思也没有 因为我总在意我给别人不一样 我从来不敢笑 因为我牙 我的生活没有一点希望我的心情很低落,觉得活着一点意思都没有,我没有家,我和有着冠心病的妈妈租房子生活,妈妈每个月要吃1000多块钱的药,而且需要经常住院,而我呢一个月才挣1500块钱,身 all that glitters is not 还有一句：not all that glitters is gold.请问这两句话是一样的意思吗 5.Every year,Tom remembers to have some flowers______(寄给他的母亲)2.The hall was much brighter with______(所有的灯亮着).(burn)求标答 急. All that glitters is not gold.翻译下: All that glitters is not a gold我个人认为,这个句子是 所有发光的都不是金子但是答案却是 发光的不一定所有都是金子,这个是什么道理呢 最好有几个例句 用sam can jump high组成一个句子 对jump high进行提问 all good things come to an end all that glitters is not gold 请用英语回答：Why is image important to us? 求篇"why humor is important?"的英语作文? 1—6题. 求写一篇介绍television的英语作文,要求涉及when,who,why is it important?读起来时长约三分钟,词汇尽量简单些 1到6,英语题 跪求一片英语作文：Why a sense of humour is Important?1.幽默能体现个性.2.幽默有益身心健康.3.幽默能融洽与他人的关系.注意：1.发表自己的感想,适当发挥,内容连贯.2.80-100词左右. 想要快乐的生活?一直以为这个世界很美好,可是有太多的虚伪和善变.所以想要相信什么都很难.才要问问怎么样才可以快乐的生活? 英语第一题和第六题（求详解） Bruce can jump high改为否定句还有This is Dabe改为否定句、 I CAN'T JUMP VERY HIGH改成肯定句 she can jump high改为否定句 Tom ________ a toy car.His parents ________ two cars.A.have; has B.have; have C.has; have 选哪 英语题目求解6.7.题 英语题目（6题）选择：1.this sign tells us what we must （ ）.A.do B.to do C.doing D.don't do2.can you collect me （ ）Hongqiao airport at 4:00 tomorrow.A. by B.to C.at D.form3.where is Jack?I saw him （ ）basket 英语翻译我用在线翻译来翻译这个句子,得到了N种答案,无奈小弟不懂英语,晕呼~,请哪位高手告诉一下到底应该怎样说呢? a good diet 怎么回答Is it a good diet? What's a good diet?怎么回答? 怎样才能提高自己,超越自己? 急用,必须要正确.适当形式填空you can see some______(sheep)in the picture.these are my father's_____(photo).peter's father is ____（they）Chinese teacher.can you borrow______(I)your tape?This is your scarf.Please______. A.put on After my father passed away,I found a piece of paper in his wallet.It was old and almost crumbled (破碎) away at my touch.I carefully unfolded it and found the following:Wanted:Honest men and women.Job description:Crowd control,watching,and patroll