一个c12原子的质量

分数口算题,急用!五年级下半学期. 怎么样快速做分数口算题?我口算不是很快,但分数乘分数还可以,分数的混合运算写的比较慢,而且会有2.3道错的,能快速计算分数口算,还要有准确率. Which of the following is TRUE 翻译汉语 【(x+2y)^2－(x－y)(3x+y)－5y^2】÷2x化简带过程 Which of the following is TRUE? 求翻译 Which of the following is right?(翻译这句话~) Which of the following is true?的翻译 第8片：第9片：第10片：第11片： 帮我翻译个英语句子 Which of the following isTRUE according to the passage? Which of the following statements is true according to the passage?这句话有没有语法错误?statements应该改为单数形式吗? 人教版小学六年级下口算训练40页答案,给分的~ Which of the following can give you all kinds of telephone number?A.110 B.119 C.120 D.114 The length of each side of a square in metres is an odd number.Which one of the following couldpossibly be the perimeter of the square?请翻译一下（跟上和下连起来翻译,但我只要一个答案） Which one of the following numbers tal number system(base 8)? if "X" is an integer,which of the following will produce an odd number?A.3x² +1 B.x²+2xX是不等于0的整数A.B都存在奇数和偶数的情况啊? 已知y=√2x-1-√1-2x+8x,求√4x+5y-6的算术平方根? [-B17] The growing speed of a plant is influenced by a number of factors,______ are beyond ourcontrol.A.most of themB.most of whichC.most of whatD.most of that翻译并分析 a number of factors could account for A great number of factors contribute to the increasingly serious problem.是什么意思呀 ,急!A great number of factors contribute to the increasingly serious problem.Here a few of them would be explored. the following are school rules except“——”选什么?A.No photos B.Don’t fight C.No smoking D.Don’t talkloudly all of the following are true/false except意思是什么 请说 an adjusting entry could contain all of the following excepta a debit to unearned revenueb a credit to cash c debit to interest receivabled a credit to salary payable请说出理由. The following are all e-mail English EXCEPT___.A.BTW B.CSL C.CUI8r D.WWF 口算. 口算出来 帮忙口算一下! 一年级口算题100道 （school rules）要简单的～～! 例：school rules1,Don't arrive late for class.2,Don't run in the hallways.3,don't eat in the classroom..我现在,在初一要简单的就行～!越多越好～～～～～～～～～～～～! 急 The following are all examples of stakeholders except:Answer employees all of the following are generally true of a typical computer ,EXCEPT除了下面哪个不是以外.all of the following are generally true of a typical computer ,EXCEPTA.cache memory is faster than RAMB.there is more cache than RAMC.the larger the c 求微笑的味道作文400字,急 2000道有理数口算!至少2000道,位数3位以内，包括3位