制取乙炔的发生装置

正像数学家华罗庚说过的,科学的灵感,决不是——的.如果说,科学领域的发现有什么————的话,那么这种“————”只能给————的人,给————的人,给————的人 数学家华罗庚说过什么关于发现能给我们带来灵感的话 跪求一篇描写自己周末和以前有很大变化的英语作文主要是生活习惯的变化,书信格式,谢谢你们了, 单词的中文意思是什么 英语作文、、描写自己周末生活的文章、、、初一的水平、、急求! play game every afternoon请问这个短语有没有语病 Football is a favourite game of ----（他们的）.They play it every weekend.Can you ----it Something is so sweet.If you want to go to the city center ,please don't ----the early bus.Who's the woman over there?She's my -----.She moves next to my ho I think it important to keep healthy 与I think it is important to keep healthy 区别 It’s important to keep your healthy.这句话有语法错误吗?要是有,怎么改?有人说把your改成you,有人说把your去了在句末加for you.这两种都行吗?还有别的改法么? Yesterday evening 和 last night 有什么区别? 昨天我做了一个好梦i ()a good ()last night 昨天晚上可以说“last night" 那昨天可以说成”last day"吗? 1.Tom left his key to the bike in th classroom.（对划线部分提问） _ _Tom__in the classroom? 2.He is going to watch the game tomorrow.(改为否定句) He __ ___watch the game tomorrow. 3.They're going to meet outside the school gate.(改为 what's the time ,Peter?It's aboutA.thirty-five mimutes to eleven B.twenty past eleven C.eleven to fifteen D.twenty passes eleven 2.I don'tknow.How far does she live from school?(合并成同一句话）.I don't know (填三个单词）from school . 唐宋八大家——韩愈简介 Our teacher said that the moon ( ) around the earth.A.turn B.turned C.has turned D.turns还得告诉偶why啊? 唐宋八大家之韩愈的主要内容以及观后感、寒假作业啊、谢谢亲们 he has worked as a teacher months ago改为he ( )to work as a teacher mongths ago 唐宋八大家韩愈（唐宋八大家）的老师是谁?他的师承有谁了解? He had been a teacher and then he turned ___doctor.横线上不是应该填“a”的吗?为什么答案是什么也不填呢? 韩愈为什么被列为唐宋八大家之首? wash make yesterday they play正确形式填空 1 .they want to help the girl ( )kites I saw them play football in the park yesterday.改被动:They____ ____ _____play. How long ---- the meeting----yesterday 填 did last?为什么 last原型?last表示持续? 英语作文 妈妈的生日,你送给妈妈一个花瓶,却被小猫给打碎了,一个美好的日子却被小猫给破坏了要用过去式, early(反义词） early的反义词是什么 early 的反义词是什么? early的反义词是什么请指点 early称反义词是什么? not,many,people,were,there,streets,or,then.连成一句话．was,a,bridge,years,there,many,ago.连成一句话 There were many people and many animals. 这句话对吗?为什么?