五年级下册长江作业自我检测一

汗水能不能验DNA人能不能通过汗水验出DNA? 句型转换 There is something wrong with my father(用what改写） dna分子___复杂,具有___性,___性 谁知道DNA分子的特异性是指DNA分子具有什么? DNA主要存在于（）中,他的结构像（）.DNA分子很长,它可以分成许多（）,每个（）具有特定性的（）,叫做一个（）. 《九下同步》P18（18）：---Who's ____ young man with long hair?---He's a friend of mine.A.a B.the C.an 选啥,并解析,为什么 He was busy with a man\'s hair,when a handsome young stranger came in.是什么 化学中怎样看方程式分出强酸（碱）弱酸（碱） The bottles made in most places contain about three-quarters new glass and the rest is recycled这一句怎么翻译, The wall is made from glass bottles and cans .这个句子语法对吗 英语翻译怎么样改为被动语态呢? The walls are made from old glass bottles that are glued together.为什么用from?这个原材料不是看得出来的吗?而且,没有发生化学变化,应该用of.是保持到物理性质不变的,是可以看得出原材料的. you should at least tell me the reason __ your doings . 选哪一个?谢谢! A.of B.with C.for D.why The walls are made from old glass bottles that are glued together.The roof is made from discarded tiles.为什么用be made from,怎么不用be made of.be made of不是能看出原材料的那种吗? You should at least tell the reason ___ what you have done.A of B with C for D at With his work completed ,the businessman stepped back to his seat,feeling pleased ___he was a man of action .A which B that C what D whether i prefer the aisle seat here.i feel sick with a seat back to the engine.4055 同义句转换A man with glasses spoke loudly and help me get back the seatA man ( )glasses spoke( )( )( )( )and help me get back the seat.拜托各位了 羟基上的氢原子的活泼性1.请 设计实验 比较：水、乙醇、苯酚、碳酸、醋酸 羟基上的氢原子的活泼性的强弱,写出有关的化学方程式以及具体实验步骤.明天晚上就要用!.2.设计实验鉴别硝酸 硅橡胶中的硅羟基可以与什么反应 为什么氧化硅表面有很多羟基 解方程组｛4分之x+3分之y=4分之3,5（x-9)=6(y-2) 过程不要省略 Trust is like a paper.Once it's crumbled,it can't be perfect是什么歌曲里面的?阿姆的歌里面的吗?强人帮找下 Trust is like a paper.www.madouzi.com,Once it's crumbled,it can't be perfect.英语翻译中文 trust is like a paper 初2《观潮》扩写,急扩写 观潮第二段扩写 Students play basketball (in the afternoon at school)对括号部分提问 The boys often play basketball in the afternoon.对画线部分提问 i play in the afternoon(用playsports和in the afternoon提问she eats lunch at 12:00 at noon.(用eats lunch 和12:00 at noon提问） my nucle is a driver.（用my nucle 和a driver提问） they're swinging.(用swinging提问） the pandas are clim Bamboo can be ________（make） into paper.怎么填 what can it be made into是什么意思啊