如图a所示平行金属导轨

The only step that needs the user to participate is to ...participate 用的对吗 Every member needs to pay only a little money a year to get medical care.请问,此句need,加了s又有to,表示实意动词对吗?那么后面又有pay也是动词,此句谓语是什么,脑袋纠结了. 存在主义的哲学家都有哪些? 请问海德格尔是存在主义哲学家还是浪漫主义哲学家?最好能解释一下什么是浪漫主义哲学 英语翻译（接上）giving us the strange situation in which "we are certain of everything-relatively,and of nothing-positively"这是一篇评论上看到的,讲的对是the waste land和T.S.Eliot的一些分析,context对这一句的翻译影 1.It is not a serious accident; the car needs only some _____ repairs.A.major B.minor C.secondary D.primary2..With the population explosion,scientists will have to ____ new methods of increasing the world’s food supply.A.lead to B.carry out C.come Man's pledge is skillful is an entertainment 我的梦想——发明家 我的梦想是发明家600字作文写一下发明就可以了,2个就可以了, I was not connected with the car accident.同义句I（ ）（ ）（ ）（ ）the car accident括号里填一个单词~少了一个空，是五个 will you please ____ the TV---I want to see the Animal World.Will you please ____ the TV?---I want to see the Animal World.A：turn off B；turn down C:turn on D：turn up 有关成长的日记或作文越多越好 七年级亲情日记作文三则怎么写? 关于成长的日记三则,三则日记可以写在一起（推荐）随便写写,什么内容都可以注意： Where are spacesuits 英语作文 where i like to visit .要写去巴黎 该怎么写英语作文 where i like to visit . 要写去巴黎 该怎么写 求大神 “红脸”“白脸”是什么意思? l'm very busy ( ) school days,( ) l have somel'm very busy ( ) school days,( ) l have some ( ) time on the weekends . You'd better eat___(little)meat than before,because you're getting fatter and fatter.翻译并解答. 红脸白脸什么意思 truly really certainly之间的不同?同题 辨析certainly / indeed / truly3者均做 的确,确实 讲时有何区别?1》He certainly works very hard.如果说成：He works very hard indeed.或 He works truly hard .2》Indeed he is poor ,but he is happy.如果说成：certainly he is poor 帮忙把Helen will have someone to alter that dress to fit her 变成have + object +p.p. 的结构谢谢啊 we feel that you will fit in well是什么 江猪子是什么动物 谁知道哪里有A Letter of Apology的英文作文范文? 介绍下 英语翻译总体来说,自16世纪以来,中国风在欧洲的传播推动了历史文化的发展,也加深了世界对中国的认识.近几年中国在各个领域发展迅速,中国制造闻名于全世界,那么作为影响世界的重要部 严密 精密 周密 这篇文章结构（）,文笔流畅 要去也惨了,我们应该有一个（）的安排 研制宇宙飞船的工作一定要（ ）,不能有一丁点的马虎. 帮忙写一个英文小作文,感谢信（Letters of Thanks）根据这段要求写：Your supplier,Mr.Harry Johns,invited you to dinner last night.Now you are going to write a letter to expiess thanks for his hospitality and tell him that you value 荷兰语中的“这个男人”怎么拼写? The girl has many toys（同义句）That boy does his homework every evening.（两句提问）➡第一条画在＂That boy＂第二条画在＂his＂ 帮忙取6个英文字母的英文名是女旳 要卡哇伊一点旳