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已知H2(g)+F2(g)=2HF(g) △H=-270A：一个氢气分子与1个氟气分子反应生成2个氟化氢气体分子放出270kj热量这句话为什么错 唐山大地震的作文. 求直线y=ax+b(a≠0)关于x轴、y轴、原点对称的直线的函数解析式 简爱的摘抄和评析7段,每段100字左右摘抄再加上100字左右的评析文章,不要太长,有别的书的也行,只要够7篇（一本书7篇）就ok了! 速度求简爱中最喜欢的段落摘抄并点评（800+）rt .英文句子,帮忙看下此句有无语法错误.如题：It has a significance of milestone for us and Daxin to cooperation of the A+H listing business,the achievement of diversification,the expansion of our businesses in the mainland market. 或 怎么写热化学方程式 热化学方程式 该怎么写 1.用ignore的适当形式填空.（ ）by the host at the party,he was unhappy.2.完成下列句子.（1）He ————（受了好多苦,注：用上suffer这个词）when he was a child.（2）Do you often ————（遭受头痛的折磨 .会做得来看看..我会追加分的选芒梗稻种需要配制密度为1.1×10³kg/m³的盐水,某农户配制了50L盐水,取出500ml 进行监测,测的这些盐水的质量为600g,(测完后将盐水还倒回）.1.请帮助他分析 Although it had been ______struggle for him to finish ______experiment,he enjoyed the result with ______satisfaction.为什么答案是：a ; the ; / 1.They're collecting money for the victims of the earthquake.It's a very good _____A.purpose B.reason C.cause问此题答案为什么是C不是B?2.They found _____ that the goddess turned out to be ...A.surprisingly B.with surprise C.to their surpris 花的英文怎么写 英语翻译 跪求《童年》的好词好句好段加赏析 把不同类词语找出来.1茶杯 筷子 菜碟 飞碟2粉笔 钢笔 毛笔 铅笔 寻找类似词语有没有类似于我爱你、我恨你、我想你、我怕你,的这种我（ ）你的句式 找不同类词语气势汹汹.全神贯注 眉开眼笑 昂首阔步 第二题.找不同类的词. 1.We have a history lesson____________Firday afternoon.A.at B.in C.of D.on 2.__Please write down the telephone number.__Sorry,but I have no ______to write on.A.pen B.ink C.paper D.time3.__What's wrong with your son's____________?__He can't see things 1.We have a history lesson____________Firday afternoon.A.at B.in C.of D.on 2.__Please write down the telephone number.__Sorry,but I have no ______to write on.A.pen B.ink C.paper D.time3.__What's wrong with your son's____________?__He can't see things 考英语六级要准备什么啊? 英语六级要怎么准备 I have to move to a city(翻译） 造两个句子,第一个句子里要有have,give,to,live,move,do,shoe,who第二个句子里要有most,post,cold,bold,both,Rome,不必按先后顺序,越简短越好,但语法要正确哦! [w22] I _____ to be quite afraid to live in that city,but now I have ______ to the life there.A.was used ; got used B.used ; used C.got used ; beeb used D.used ; got used 翻译,并分析. I ( ) to be quite afraid to live in that city ,but now I have ( ) to the life there.A.was used … got usedB.used… usedC.got used … been usedD.used…got used个人觉得选D 从哪可以买到听力和阅读都有很好的中文翻译的六级真题啊? Do you want to live in a big city or a small town?And why?以这个为话题 帮忙编个英语对话 Do you like to live in small ___ or big ones?(city)使用单数还是复数啊为啥呀 写一篇英语作文,starting career in a big city or a small town很多大学生留在大城市,也有人选择到小城镇开始自己的职业生涯,结合自己实际 谈谈自己的想法 Do you like to live in a small town why or why not?