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similarity和identity不同吗?Biometric access-control system work by degrees of similarity,not by identity. ELISA试剂盒请问一下国产的试剂盒哪个公司的做出来的效果好 是不是试剂盒只能做一次 人教版初中语文课后的所有字词注音当做次好人 you should look after you h_______ Simon,you should learn to look after -----------(you) is ( )eraser.You should look after it .1your 2you 3a 4yours what happend while Linda was on the telephone while不是不可以用在句中吗 You should learn to look after yourself well.改为同You should learn to look after yourself well.改为同义句You should learn to ______ _______ _______ _______ yourself. what happend while Linda was on the telephone 中was on the phone讲解一下好吗 you should look after your pet well.you should _____ ______ ______ ______ your pet.you don't need to finish your homework now.you ______ ______ _______finish your homework now.the little dog is hunting for its owner.the little dog is ____ _____for it What happened while Linda was on the telephone什么意思 What happened while Linda was on the phone?为什么不是What did happen while Linda was on thephone请详解此类情况, 数列.第十五题第二小题 高一数列题(+15)数列{An}满足A1=1,A(n+1)=An+2(1)设Bn=1/An·A(n+1),求数列{Bn}的前n项和Sn(2)求数列{An·P^n}(P>0)的前n项和Tn 新闻报道怎么写?发个例文,关于中秋节的.300字 清明节随想范文300字左右 英语的动词不定式题目I‘m going to the library_____the books.A.return B.borrow C.to return D to lend选那个,为什么?It is no use_____（talk）with her.还是要详细说法The old watch need_____（repair）I must apolgize for not_____ 动词不定式!动词不定式是?我一直不懂什么动词ing和to 接动词原形等不等? 王老师光容的被评为全国:劳动模范:的称号.该病句. 修改病句：李阿姨被评为市劳动模范的称号.修改病句：李阿姨被评为市劳动模范的称号. 人教版初中语文课后词语及解释,要全哦,谁有?帮帮忙 What h_ while Linda was on the telephone?横线上应该添什么 已知x的平方+2m-1=0,求m+1/m的平方急死啦啊啊啊啊啊啊啊啊啊啊啊啊啊！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！ 小明的一本书有104页,在这104页的页码中有两位数的,且这些两位数中的一个数字经过平移能得到另一个数字,则这样的页码共有几页? 一道编程题目pascal：用辗转相除法求两数的最大公约数. “能否刻苦钻研是提高学习成绩的关键.”是一句病句吗? 王叔叔看了许多书,丰富了自己的知识和水平.怎样修改病句? 若函数f(x)=3^x,其反函数为f^-1 (x),且f^-1(27)=a+2,求a的值 若函数f（x）的反函数f-1(x)=1+x2（x〈0）,则f(2)的值 求函数f(x)=2sin平方2x+4sin2xcos2x+3cos平方2x(x属于R)的最小正周期,并求函数f(x)的最大值最小值. 一个小数,如果把它的小数点先向左移动三位,再向右移动一位,得到的数是2.435.原来这个小数是多少? 函数f（x）=（a*2^x-1)/(1+2^x）注：（a∈R）是R上的奇函数,求a的值,以及f（x）的反函数