题目是三个字的古诗

生物学实验中常用到普通显微镜,试回答下面的问题：（1）一个细小物体若被显微镜放大50倍,这里“被放大50倍”是指放大该标本的____（2）当显微镜的目镜为10×、物镜为40×时,在视野直径范 讨论这个问题是没有意义的用英语怎么说急~~ 以后想选理科,唯独生物太差每次都70多拉了很多分,想问问有什么方法搞好这三年的生物,感觉就是认真去读都考的很差···还有,想问问有什么生物的课外习题书好用的,我是人教版滴 但是也没起多大作用-----英语怎么说 她根本就是新来的.而且在上面自己讲个够.根本没有想到我们在听课..有时一句话还要讲两三次才讲出口..我找班主任投书她有用吗?还是要找校长?她 已知点M(2,2)和N(5.-2),点P在X轴上,且角MPN为直角,求P的坐标 六年级上册英语活动手册U8第4、5题答案第四题：1.A:___janet ______(invite)all her friends to her birthday party?b:yes.now she ____(talk)about this with her mother.2.there ___(be)a big party at our school tomorrow afternoon.yes.all th 花的英文怎么写?flower 花 英语怎么写 花英语怎么写 在坐标轴上求一点P和M(-3,2)N(3M-2)所确定的角∠MPN为90° 将下列句子合并成含定语从句的复合句.1.I hate peopie,They talk much but do little.2.Do you konw that footballer?He scored tow goals.3.She can't eat the food.It has chocolate in it. 我想问问你关于他的情况用英语怎么说是用英语怎么说 avril tomorrow you didn'tTomorrow you didn’t,yesterday you won’t怎么翻译啊?是什么语法啊?Tomorrow －didn’tyesterday －won’t为什么没人回答 谁知道艾微儿的tomorrow you didn`t的歌词 百分之五的硝酸溶液ph值是多少? 2%硝酸溶液PH值是多少 2%氢氧化钠溶液PH值是多少 最好有计算过程 硝酸和二氧化氯的PH值是多少?如果有关于它们的检验报告那就更好了 在英语中,请教某人该如何表达如何对人说 问一个美语中的表达...我那天看了一篇文章,说是美国人要表达“大厦”的意思不用mansion,而用plaza,还有就是想问一下：roll with the punches是指让打击减轻一些么?我不太确定..就这些了,谁能够帮 15.Near our school there is a store.It’s 1 but there’re 2 of school things.Do 3 like exercise books,erasers,pens 4 color pencils?They are 5 .Big erasers are just one yuan 6 and the small one is 0.5 yuan.The color pencils are just 7 2 yuan.I want 单词接龙.每个()只填一个字母,使每组单词能首尾相连.例如：hi(s)o(n)am(e)rase(r)eac(h) 单词为：his son name eraser reach1.thi()u()ec()it()at2.ho()e()igh()he()outh3.ge()hre()a()e()og4.win d()ello()hit()rase()ow 谁能帮我翻译下艾薇儿和的歌词? 30%硝酸与70%水混合液的PH值大概是多少? 英语的被动态选择题 (1)4.All the preparations for the task _____ and we’re ready to starta.completed b.complete c.had been completed d.have been completed6.---____ the sports meet might be put off.--- Yes,it all depends on the weather.a.I 当水的PH=5.5,5.0,4.5,4.0时分别求消耗的磷酸,硝酸,硫酸的量 我想问一道英语选择题__ his wife's being late,I said nothing about it.A. As B.Because of C.Since There is__ for____.A.no space left; the headlineB.not any space left ;writing the headlineC.not space left ;the headlineD.all the above要说明B C为什错 （ ）Don't forget to the books you've borrowed in the library tomorrow.It's time for you to return.A.bring B.take C.carry D.send我知道选A,但能否讲一下A和B的区别 几道五年级英语题一.读一读.选写单词office,sent,borrow,hope,back,place,broken1.Where do your parents work?They work in the ______.2.My friend ______ me an interesting book.I ______ I can read it every day.3.Lingling had a picnic at a __ 【求助】65%的硝酸的pH值是多少? 100%硝酸的ph值是多少?