co低温氧化

credit card account number是什么意思 兄弟两个比年龄.哥哥对弟弟说：“当我是你今年的岁数那一年,你刚刚3岁.”弟弟对哥哥说：“当我长到你今年的岁数时,你就是15岁了.哥哥和弟弟今年各几岁?不能用方程 关于二次项的,已知（1+x½)的n次方的展开式中第九项,第十项,第十一项的二项式系数成等差数列,求求n China entered the WTO in 2001,thus ( ) its long-cherished wish to join the global trade body括号里填realizing 我有点搞不懂唉 China became the 14th member of the WTO,thus___it's wish to join the global trade bodyA.realized B.to realize C.realize D.realizing 已知tan(β/2)=0.5.sin(α+β）=5/13,且α属于（0,π）,β属于（0,2π）（1）求sinβ,cosβ.（2）求sinα麻烦给出一些过程 China became the 143rd member of the WTO in 2001,thus(realizing)its 15-year wish .如题,为什么不可以用having realized?晤,还有一个,Jose came to borrow my skiing boards yesterday,but it happened that I （lent ）them out.为什么不用h China became the 143rd memeber of the World Trade Organization on Decemeber 11,2001,thus China became the 143rd memeber of the World Trade Organization on Decemeber 11,2001,thus its 15- year wish to join the global trade body.A having realized B real 求大神做matlab作业. like to do sth和like doing sth有什么区别吗? 货车装货怎样算能装多少立方的货 长2.5m 宽2.1m 5m 我想了解一下40立方的槽罐运输车能装多少吨汽油?是怎么算出来的 , 适当形式填空The Great Wall of China is_____(know) to all As we all know ____ Great Wall is __longest wall in the world 一道高一数学三角函数题若角α是第一象限角,问α/3是第几象限?答案：①当k=3n时（n∈Z）,n • 360°＜α/3＜360°+30°（n∈Z）∴α/3是第一象限角.②当k=3n+1时（n∈Z）,n • 360°+120°＜α/3＜360 we don't know how the a ______ Chinese people built the Great Wall without modern machines I do not know how to do it.could you give me some a( ).China is f( ) for the Great Wall. 一道高一数学题（三角函数）求：函数y＝（1＋sinx）（1＋cosx）的最大值和最小值?请速回! 有关三角函数已知a>0,x大于等于0、小于等于2π,函数y=cosx平方-asinx+b的最大值为0,最小值为-4,求a、b值 like to do sth 和 like doing sth 的区别最好详细一点. 一道matlab编程题,这是一道随机游走模型,10人互相间两两赌博,问多少次后只剩一人.本人用产生均匀分布随机数模拟二人赌博过程,b为10人手中钱的数量,当b(i,1)为0时,将 i 移到序列后面,前面非 一个关于MATLAB的编程问题,syms h a f2；f2=sym(((sqrt(1.5^2-(1.5-h).^2)+sqrt(1.5^2-(1.5-h+tan(a)).^2))).*8./cos(a));V2=int(f2,h,8*tan(a),h);每次总是会提示错误Error using ==> sym.mapleError,(in limit) invalid limiting pointError in == 为什么在EXCEL,if语句中TRUE=TRUE会变成falseIF(NOT(MONTH(G34)=OR(1,3,5,7,8,10,12)),((31-DAY(G34))+DAY(H34))*E34*0.004/360,30-DAY(G34)+DAY(H34)))我想达到的目的是这样的————例：IF(1={1,3,5,7,9},做A程序,如果不在这个 计算一个正整数各个数位上数字的和.用VF编程 请输入任意一个正整数n,求出该数字为几位数字.vf编程本人初学者,麻烦大大给出详细的步骤,及其步骤说明, 严格的 态度 严厉的 要求 严肃的 形式 严峻的 目光 连线 态度,言语等不严厉,不粗暴.这句话写一个词语 She thinks the boy want to join the club.该为否定句 Lucy:Hello,John!__W_____ club do you want to join?John:I want to _j______ a sports ciub.Lucy:Great!What sports can you __p________?John:Basketball. C++ 定义一个函数,功能为计算圆柱体的体积,并编写主函数,输入半径和高,调用函数求出圆柱体体积 请问,我在VB里自己定义了一个函数,函数的输入变量为一个,函数计算结果为三个输出变量,请问怎么返回函数值不好意思,刚学,不是太懂.我现在函数大概是这样的f(a,b),其中a,b是我自己输入的数 日什么成语