光的反射

第二周期非金属元素有哪些 男人最大优点? she called me the following morning为什么不是 in the following morning? Mary was out whem I called her. She wamtsher daughter to be a nures.Jim practise playimg the guitar yesterday. 加标题两个句子该否定句 一般疑问句 做肯否回答 My sister and brother have two toys.改一般疑问句我觉得改为：Do your sister and brother have two toys?更妥,有没有Have your sister and brother two toys?的改法? My sister and brother have two toys.改成一般疑问句怎么改并给出肯定回答 鲁科版高中物理用什么练习册好志鸿优化设计更好还是志鸿导学大课堂好.二级达标校用 最好把您的理由说出来! 高中物理练习册哪本好? 高中物理最好用的练习册有哪些? ——What does the sign over there read?——No person ? smoke or carry a lighted cigarette,cigar or pipe in this area.A.will B.may C.shall D.must What does the sign over there read?no person( ) smoke or carry a lighted cigarette in this areaa:will b:shall c:may d:must 求推荐一本题比较少的高中物理练习册 You _(keep) the book for two weeks,and you'd better return it to the librar how long the book can be kept (for) 要不要加for 什么情how long the book can be kept (for) 要不要加for 什么情况下要加for呢? Only when my son comes back( )go to bed and have a good sleepA.can I B.I can C.do I D.I will how long can l the book?you must return ithow long can l the book?you must return it to me by next Sunday.A.borrow B.keep C.lend D.buy 洛神赋赏析 （洛神赋）全文及赏析 洛神赋赏析的文章要的是鉴赏方面的文章,不只是原文和翻译,救急用的啊 求《洛神赋》全文及赏析 《洛神赋》的赏析对《一文,包括课文里面的内容,课文的艺术价值等等!（3000字以上）的答案 the sign means“Keep off the grass"改为同意句 填空并翻译.“Keep off the grass" means we shouldn't () on the grass. 最坚强的意志 用成语回答 《感甄赋》《洛神赋》作者 she say That lm only The 求《洛神赋》原文及简介. 谁能给我《洛神赋》?最好详细点,原文,翻译,解释,典古…拜托…只要能使我满意,在不违背良心的情况下分随你要 钢板的比重是多少,怎么算? Imaging you are on vacation.Write notes about your vacation1,Where are you?2,What's the weather like?3,What are you doing right now?4,what are your friends or family doing?5,Are you having a good time?写得好有赏哦.求English学霸.