高锰酸钾法测定cod

There are some big in our garde .A,apple tree B,apples treesthank you 修改病句There are some apples in the tree. 关河令以什么为线索 根据提示写出相应的诗词句子.抒写友情的诗词：____________________,____________________.借月抒怀的诗词：____________________,____________________. 根据提示写词语或句子“这是经常不离木刻刀的,那又是洋洋洒洒,_ _ _ _ _（形容写文章写诗出众的又快又好的著名诗句）的”.这二句是茅盾在《风景谈》中写雕刻家和诗人作家的手的句子,应 根据括号里所给词的提示完成下列句子1.I forgot _______(finish) my homework.I'm sorry,sir.2.The boy ________(wear) a blue sweater is Li Lei.3.The supermarket is very ______(crowd)every day.4.The train travels ________(slowly) than the p 英语单选 1:When will you come to see me DAd?I will go to see you when you ___ the training course A:will have finishedB:will finishC:are finishingD finish2:I____to stay out in the cold_____spend the night the night thereA:would,rather than B:pref 《过零丁洋》中表现古人爱国的思想感情的诗句? 一块铜锡合金,铜和锡的质量比是7:5,铜有84克,锡有多少克? 在一块铜锡合金中,铜锡质量只之比是6：4,已知铜重460克,锡重多少克 请举例说明藏戏面具的颜色含义和京剧脸谱的颜色含义有什么不同,并简要谈谈你从中悟到了什么? 做错了事情,该怎么写检讨?检讨,师傅让自己好好反省反省,该怎么办?求帮助! I want to know what's wrong with she?这是一句宾语从句吗 what she wants to know is which dress she should buy是个什么从句,并帮我分析下 主语从句还是表语从句? I want to know from which city does she come?有无语法错误? 春望一诗抒发了杜甫怎样的感情 Who is going to give Lily a birthday party?什么意思 杜甫写春望时的思想感情 杜甫的春望诗以什么字为线索,抒发了什么的思想感情 阅读《对雪》,结合杜甫的《春望》,说说本诗表达了诗人怎样的思想感情? He____go to the supermarket to buy food because she has got a lot.A.need B.doesn't need C.needn't Who is she?Please tell me!I want to know. Show me how you want it to be,Tell me!Cause I need to know now. Shall I tell John about it?的否定回答的答案是,No,you needn't.和No,you don't have to.可我认为应该是：No,you can't. 1.Haven't I told you that don't like suger in coffee Yes,but I less than I usually doA was putting B put C will put D had put Will you go to Jenny's birthday party? I'm not sure.______I go,I will call you. ---Will you go to Andy's birthday party?---Perhaps not.I ____.A.wasn't invited B.haven't been invited yet选哪个啊?为什么? will you go to lucy's birthday party this sunday () I if you ()A so do,go B SO will,go C neither do ,will go D SO shall ,will go 忘记交钱检讨书怎么写 Shirley had to buy ____ these CDs becuase she didn't know which one to take.A all B none C each D both为什么选A? Shirley had to buy ___ these CDs because she didn't know which one to take?A.all B.none C.each D.both 1,Everyone was on time for the the meeting_Chirs,who'usually ten minutes late for everything.A but B only c even D yet 选C为什么?怎么不选A but?2,let out ,make out 具体3,over 和above 的区别 4,silly not to have done silly还有其他句