求方程组的基础解系

中国的校园生活是什么样子的大神们帮帮忙 初一的校园生活——提纲 校园生活的作文如何去理解求大神帮助 急需一篇父亲节感恩的作文 It made Sarah think about her family and friends back in the US.She came to realize how much she actually missed all of them.Ever since then,she has been a fan of American country music.这一句怎么翻译 感恩父亲节的文章快点!11 推理题!大神级别,求大神解一天在一个地下室死了个人,当时地上有一些泥巴,昨天刚下了场大雨,在现场留有一把刀上面只有血,死者的脖子被勒住,胸口有用刀杀得痕迹,嫌疑人有ABC三人,A说他与 真的麻烦啦!我很需要的! 200分RT.求.全部啊知道的给啊.好的追加50分 我马上要啊.每1小时看次.草..你们不知道别来赚分啊.我是确实有难处啊.答案不见了我怎么还书啊.我起码打印一份给老师吧.你们不懂别乱叫啊 500毫升啤酒等于多少克 500毫升啤酒等于多少斤 英语翻译OMG!was what I said when I saw the piñata that was custom made by Emily with Almes Accessories.It was waaaay cuter that what Ihad envisioned.This was by far the most unique piñata I’ve seen.The piñata design was blue over 英语翻译I'm a big big girlin a big big worldIt's not a big big thing if you leave mebut I do do feel that I too too will miss you muchmiss you much...I can see the first leaf fallingit's all yellow and niceIt's so very cold outsidelike the way I' 英语翻译Running star sandrn clark eats lost of healthy food.For breakfast,she likes eggs,bananas and apples.For lunch,she likes hamburgers,salad and pears.And for dinner,she has chicken ,tomatoes,French fries and,for dessert,icecream sin5+tan5的符号帮我忙 已知tan2.5°=a,求sin5°(1-tan2.5°/tan5°)的值 下列关于Na和Na+的叙述中,错误的是 A.具有相同的质子数 B.它们的化学性质相似 C.钠离子是钠原子的氧化产答案加解释,O(∩_∩)O谢谢大家!下列关于Na和Na+的叙述中，错误的是A.具有相同的质子 下列有关分子、原子、离子的叙述错误的是（ ） A.分子是保持物质化学性质的一种微粒,在化学变化中可以再分为原子B.原子是任何情况下都不能再分的一种微粒C.带点的原子或原子团叫做离 描写仙人球的花的语句以及仙人球的描写 名师课时计划八年级英语（下）Unit8达标测试卷答案 Why are Saturdays ang Sundays so strong Why are Sayurdays and Sundays so strong 翻译:"but what about saturdays and sundays " 手足癣都是由真菌感染引起的吗 求“改革开放三十年”读书征文读书读后感,1200字左右 改革开放30年“读书征文活动”作品350~400字 改革开放30年“读书征文活动”小学作品350~400字左右 求一篇改革开放三十年读书征文活动的好的征文.急用急用!要好一点的征文.要800字左右的征文和1篇500字的作文。要好的！急用! 英语：i don't want to go out because ( )the bad weatheri don't want to go out because ( )the bad weatherDon't spend太多时间（ ）your petsbe friendly（ ）her petsdon't worry( )your cat括号填介词 It is rather stupid of you to go out in such_____ bad weather.A / B aIt is rather stupid of you to go out in such bad weather.请问为什么不是such a bad weather.是因为weather 是不可数名词,并且也不能像time 例如 have a good time Why are saturdays and sundays so strong? 组合与排列的生成：先考虑组合生成程序,输入正整数m和n,1