书匠

FeCl3溶液中加入KSCN溶液不变红,加入氯水后溶液变红色,这句话对吗?原因 jar是什么意思? 微型计算机主存储器的基本编址单元的长度为?A.32位B.l位C.8位D.16位 某32位微型计算机中,存储器容量为1MB,若按字节编址,那么主存的地址寄存器至少应有（）.A.20;B.24;C.32;D.16;A.20请问原理是什么呀,.. H2SO4+Ba（NO3）2=====Baso4+2HNO3 为什么生成的是2HNO3而不是HNO3 KOH和BaNO3混合溶液中加H2SO4,沉淀是一加硫酸就生成的么? ahead of time=( )( ) 在平面直角坐标系中.直线y=2/3x-2/3与矩形abco的边oc,bc分别交与点e,f已知oa=3,oc等于=4则△cef的面积 英语翻译Don't know when I've been so blue,Don't know what's come over you,You've found someone new,And don't it make my brown eyes blue.I'll be find when you're gone,I'll just cry all night long,Say it isn't true,And don't it make my brown eyes b 如图6 在直角坐标系中,矩形ABCO的边OA在x轴上,边OC在y轴上,点B在坐标为（1,3）将矩形沿AC翻折,如图6 在直角坐标系中,矩形ABCO的边OA在x轴上,边OC在y轴上,点B在坐标为（1,3）将矩形沿AC翻折,B点落 横行,斜行,竖行和相同 谁能帮忙读一下： Teachers, Students, Good morning! Accompanied by the first ray of morning sunshine the prime of life comes not again on first difficultly in the early morning.我记得好像是一句谚语，自勉的话。 硫代硫酸钠和硫酸反应,其沉淀物什么? In the early morning the first sunshine is I give you warm wishes.I hope you can happiness in the last day of 2013.At the same time be able to find mei spring scenery through the snow near 2014,sound vientiane new water chestnuts.Decorating fook lam When you see a big supermarket,turn left.Then go down Bridge Street and turnleft.Then go down Bridge Street and turn left at New Park. down you Center Street when on your right go just see a park big (连词成句) I have never had anyone that was so loving,considerate and happy to be with the man you love as you it makes cold chills go down my back when I think of you. When you want to eat in a restaurant,you first go and sit down at a t__首字母填空 我们知道元素周期表中,每一竖列(族)中元素的化学性质都很相似.(1)根据表中规律,在表中横线上写出物质 含苯环的卤代烃命名比如这个 有什么命名规律…… 白电油是否含有卤代烃 卤代烃中可以含有羟基吗? 谁有这出版社的英语电子书 谁有关于科技英语翻译的电子书,请发我一份,可以上传. do you enjoy (go)for a picnic? Do you enjoy () for a picnic?(go) Brown Eyes 的《一年后》这首歌很好听,能帮我讲讲歌里内容吗. 用括号中动词的正确填空.Do you enjoy (go)for a picnic?I like (go) to the movies with my friend. When you go on a picnic,be careful and enjoy____(you),boys. s____is the first day of the week 首字母填空：The first bus leaves at 6:30 in the morning.There is a bus e___ hour after that.