刻在心里是什么意思

自家的氧气袋去医院冲次氧要多少钱?42L的袋子一袋的氧气能用多久? 常见不变价金属元素都有哪些 氧气袋要要去哪里买,大概多少钱一个一个能用多长时间,用完还可以冲氧气继续用吗? 常见的活泼金属元素包括镁锌铜吗? 常见金属元素都是什么颜色?它们的氧化物又是什么颜色? My Hobby and My Future作文? 英语翻译it is friday aftenoon .we are cleaning the classroom.mike and jack are sweeping the floor .three girls are cleaning the desks and chairs .my chinese teacher is mopping the floor .l'm cleaning the biackboard .jam andbiackboard .jam and ann if you'd like to donate some money ,please call us _____55314892 这段话说的对吗 如果你想捐赠一些钱,请与我们电话联系.If you want to donate some money,please___________________.联系用call 填空：Mr Green has been___Britain for a week,and I haven't received his e-mail.I really miss himMiss Wang has moved out of the house since she a man with a lot of money.A.married with B.marriedC.married to D.got marriedMiss Li her husband two mont I have received your e-mail,I will reply to you as soon as possible什么意思麻烦翻译下 I will send you an e-mail soon.同意句I will _____an e-mail______ you soon. I haven't received the specification of this rayon yarn 求“根红苗正”这个成语的意思解释!求“根红苗正”这个成语的意思解释, 根红苗正什么意思 求一个英语短文 My future求一个高中水平的英语短文200字以上300字以下.高一水准左右.内容积极向上. 谁能快速给我一篇英语作文“on open day” 我要英语作文：On the open ）6年级作文（英语） 可不可以帮我取英文名姓名：孙梦剑性别：女个性：暴力但有时候很温柔,尤其是对BF school open day一般将来时英语作文 能不能给我取个英文名?“W”开头,女孩的! 能不能帮我取个英文名?我的名字叫陈秀娴.能不能帮我取个好听的英文名字.还有黎平岳取什么英文名字好听? 怎么改掉随地吐痰的坏习惯?有一口痰,经常随地就吐.我本来想用纸的,但是老是忘带纸, 怎样改掉随地吐痰的坏习惯也许是因为平时养成了习惯,我在刷完牙之后总要把口里吐干净,吃完饭漱口之后也还是想吐干净,干净了才觉得舒服了,所以有时候就边走边吐养成了习惯,有时候在 英文名可以自己造单词吗如题, 自己造出来一个单词, 没有什么意义, 也没有相似单词, 请问这样的英文名合适吗? GMC汽车的中文名字是什么,哪个国家的?性能好吗,大概多少? 在转基因中 （急~） 英语单词不会标英标rayon yarn.jute cloth.furniture.cotton..chemical fiber.polyeste fiber.vessel.tally commence on.berth 给个英标 harold我查到了 日啊我一开始没看见 when he heard the good news,he hurried to there这句有什么错 改掉一个坏习惯要多久?