高自旋和低自旋

每个人的dna会是百分之99.9 dna亲子鉴定 血型不同能达到百分之九十九点九九吗?父亲A型,小孩B型. 两个人的DNA相似率达到百分之九十九点九九,是不是一定就是亲子关系? 两个工程队甲对原有42人,乙队原有70人,因工作需要从乙队调人支暖甲队,要使两队人数相等应从乙队调多少人到 甲队（列方程） (1-1/100)×(1-1/99)×(1-1/98)×.×(1-1/90)的值是多少 函数y=lgx(x>1)与y=2^-x(x>1)的值域分别是集合M,N 则M交N为求取值范围 已知函数f(x)=x^2-4ac+2a+12的值域为集合M,N={y|y=根号x},M∩N=M,（1）求a的取值范围；求关于x的方程x/(a-1）=|a-1|+2的根的取值范围 电路不形成回路可以有电流吗?电路两边有很大的电位差也就是很大的电压可以有电流吗? 一个黑字旁,一个吉,是什么字? A_____(rob)took place in the Pizza Palace. 《西游记》是中国历史上第一部( )小说. How many were_____ the crash.A. involving in B. involved in C. involved D. involving详细解释下原因 How many tickets were you bought? How much were the hamburgers?(同义转换) How much ____the hamburgers___? How much were the prawn?(同义)___ ___ ___ ___ ____the prawn? 函数f(x)=-x^2+4x在[m,n]上的值域是[-5,4],则m+n的取值所成的集合为 设函数f(x)=-x^2+4x在【m,n】上的值域是【-5,4】,则m+n的取值所组成的集合为?思路写清! 设函数f(x)=-x的平方+4x在上的值域是[-5,4],则m+n的取值所组成的集合为?A.[0,6] B.[1,1] C.[1,5] D.[1,7] 函数f(X)=-x²+4x[M,N]上的值域是[-5,4],则m+n的取值范围 How much is the pencil同义句 _the_of the pencil How much is the trousers ? Fifty yuan.修改病句修改病句，是哪里有问题？ How much is the meat?______ is 10 yuan.选项有：A.They areB.It isC.It hasD.They have实际上我觉得题目中的“is“应该是多余的（这样就选B）, 过去式,进行时的问题过去式,过去分词什么时候双写最后的字母如written动词进行时有没有需双写最后的字母时候,什么情况. 一般过去式与完成进行时的区别谢谢~~ 82年西游记壁纸很痛心,很经典的1982年版西游记竟然找不到一张高像素的壁纸,遗憾! 吉页读什么 两个吉怎么读?陶. 西游记经历的磨难 请帮我翻译一下英语短文,满意加分呀!HOW do students around the world get to school? In North America,most students go to school on the school bus.some students also walk or ride bikes to school.In other parts of the world,things are 翻译一篇英语小短文,满意加分哦In a Chinese meal,people put their food on the table at the same time.There is soup,vegetables,meat,fish and rice.Sometimes there are dumplings and noodles.Chinese people eat their food with chopsticks inste 英语翻译Can you imagine keeping an alien dog as a pet?This is what happens in CJ7—the so-called “first Chinese sci-fi （科幻） movie”.It came out in January,2008.The movie is about a poor man Ti,his son Dicky and their alien dog CJ7.Dic 在同一直角坐标系中与抛物线Y=3（X-4）的平方关于Y轴对称的抛物线的解析式为?