中山大学web作业

真的没办法,大哥大姐帮帮忙1.锂元素的原子序数X为,锂原子的核外电子数,氧离子的结构示意图,氧化锂的化学式,相对分子质量,雨水反应生成的碱的化学方程式2.碘化钾的化学式,阳离子符号,碘 为配置0.1mol/Lcuso4溶液,下列说法正确的是?A 取25gcuso4*5H2o溶于1L水中 B 取16gcuso4*5H2o溶于水配置1L溶液 C 将cuso4*5H2o加热,除去结晶水后取16g溶于1L水中 D 将25gcuso4*5H2o溶于水,用容积为1000ml的容器瓶 晏子谏杀烛邹是什意思? 我初中化学就不好我想问我应该怎样学高一的化月 向t摄氏度时9.5g碳酸钠和碳酸氢钠的混合物中,加入足量的盐酸溶液33g,完全反应产生二氧化碳4.4g,加热蒸发5g水后,恢复至t摄氏度刚好形成饱和溶液,求t摄氏度该溶液中溶质的溶解度. Let us go to c______ the library after school? 总共6个数,出现1的机率分别是70%,40%,80%,80%,40%,30%,我就知道最简单的一个,都出现1的机率是全部乘起来.下面难题来了(对俺来说,哈哈).其中5个或5个以上出现1的机率,公式是怎么算的?其中4个或4 关于谦让的事例（要既有谦 ）除孔融让梨之外! 2,3两题,单选题 求下面三道选择题的答案（单选题）1、下列句子中没有语病的是（ ）A、我的家乡是齐齐哈尔市.B、稻子成熟了,田里一派丰收的景象.C、自从开展雷锋活动以后,我们班不断涌现好人好事.2、 He always __others more than himself.So he has a lot of friends.Athinks about Bthinks over CthinksDthinks of 还要各个选项的意思 高二英语单选题,求讲解The result is not very important to us,but if we do win ,then so much the better.为什么要用the better而不是better 如图,在边长为2的正方形ABCD中,点E是AD的中点,EF⊥BE于F,求证：△DEF∽△EBF 2道高二英语单选题1.On May 17th,Nicolas Sarkozy（萨科奇） came in _____ office succeeding Jacques Chirac after he was voted ______ president in France.A.the; the B.the; 不填 C.不填；不填 D.不填；the2.Ding Junhui went to England 1.---What can I do for you?---I'd like to buy a present for my son,______at a proper price but of great use.A one B the one C which D that2.Progress so far has been very good.We are ,________,confident that the work will be completed on time.A.howeve 知世故而不世故,才是真正的成熟.什么意思 我们班的博客 博客地址? 安妮的日记读后感 要像一个六年级的水平 求一篇有质量的数学日记,要求四年级下的内容,谢谢!~~大约250个字！ 英语句子请帮忙纠错!I pray to god,for the girl whom i love,I hope she is happy for whole her life.有语法上的错误的话 请指出来然后帮我修改一下, 《我们班的博客》读后感 急谁有《我们班的博客》读后感啊?急 文言中"同"和"通"有什么区别 特别是时态那些……I bought a lot of / lots of cheap apples in the greengrocer near your home .我在你家旁边的水果店买了很多苹果.I only have a little /a bit of money left and no more .我只剩下一点钱了,在没有多了 sh 曹操诗歌《蒿里行》中“白骨露于野,千里无鸡鸣”反映的是哪一时期的社会状况 After two -----------﹙hour﹚walk , he wanted to rest ._____ an English-Chinese dictionary,the word “sing” comes ___ the word “king”.填哪两个介词 In an English-Chinese dictionary,the word “sing” comes after. 英语句子求求纠错Second,the most important,is that there are more and more unhealthy programs about crime,pornography,gore and so on which severely affect the psychology of children. 朝花夕拾读后感400字（要注意概意连结）9月1日以前交啊~ [单选]The box is too heavy for me to carry.Jack offers____me____the box.A.help;carryB.to help;carryC.helping;carryD.helping;to carry 直接引语转间接引语 The English teacher said to her,"Never be crazy about the computer games."The English teacher said to her,"Never be crazy about the computer games."直接引语转间接引语要求是每个空只能填一个单词：The E 麻烦看下如何统计word里一篇文章的单词量　迷茫了,打心底谢谢你们了