七大洲的英文单词

已知方程求斜率假设ax+by+c=0 y=(-c/b)+(-a/b)x 所以k=(-a/b)例题中:y=2x+3 斜率为什么等于2 不是-2呢?完整例题:过点 0,1.与直线Y=2X+3平行的直线方程为?我想用点斜式 请教英语高手一个句子结构分析!I am not sure what the exact words were which he uttered from his mouth,but I understood what his meaning to be.其中我认为第一个what是状语从句,下面的which是表语从句,最后的what是宾 请解释第11,12,51小题 询问句子结构handsome is the masculine equivalent of -and refusal of- a compliment which has accumulated certain demeaning overtones,by being reserved for women only. 求分析句子结构Could you help me to figure out what expenses are when taking a trip abroad is like to a country in Europe? 2电子微粒有哪些? 为什么要在死人的灵堂里挂上一个"奠"字呢, 奠怎么组词 在平行四边形ABCD中,AC⊥AB,AC与BD交于点O,AO=1,AB=根号2.1）求BD长 2）求平行四边形ABCD周长和面积 问个句子结构As is known to us,man can't live without water.为什么不是As it is known to us,man can't live without water. 句子结构请教Mastering the flow of your work at all the levels you experience that work provides a much more holistic way to get things done,and feel good about it.请问这句话的主语倒底是什么,that work在句子中的作用是什么 请教句子结构With the acceleration of industrial growth came acute urban crowding and accompanying social stress.with ...came...accompanying ...什么关系啊 请教下句子结构The main function of the language-laboratory is to take over those aspects of the drill-work which are repetitive,mechanical,and do not absolutely require the presence of a live speaker,thus sparing the time and energy of this la 请教英语句子结构请问在这个英语句子中Experts estimate that ten times as much petroleum exists in such sources as tar sands,heavy oil,and perhaps even shale as in conventional reservoirs.主Experts ,谓estimate,that引导宾语从句, 初二三角形练习题直角三角形,AC垂直BC,垂足为C,AC=6cm,BC=8cm,AB=10cm,则点A到BC所在直线的距离是( )cm,点B到AC所在直线的距离是（ ）cm 关于英语的句子结构,想问问两个问题As I held him and assured him that he had done a terrific job and God was certainly not angry with him为什么从句那要用had done 而不用did?还有那些什么过去分词短语好像不要用Be 死了人为什么要摆花圈? 若多项式四分之一a的2次方+2ka+1是一个完全平方式,则k的值是多少?已知(x+y)^2-2(x+y)+1=0,则x+y的值为多少? (log4 3+log83)*(log32+log98)等于 花圈上的“奠”是什么意思 怎么选择时间都会证明你是错的翻译成英文 谁知道"奠"这个字的真正含义?有人知道吗?这个"奠"的意思```` “奠”这是什么字 1.已知a^2-2ab+b^2+2(a-b)+1=0,则a-b=________2.能否将多项式4a^4+1再添一项,使它成为完全平方式?3.分解因式（1）5x^2-45y^2 (2)25x^3+10x^2y+xy^2 (3)x^5-xy^44.已知a(a-1)-(a^2-b）=3,求a^2+b^2-2ab的值 奠词怎么写总经理的姥姥去世了,公司要发去一份祭奠词,应该怎么写? 奠下啥意思感恩感恩. 对于多项式4a^2+1,添加一项使其成为完全平方式,可以添加的整式是 跪求学英语速成方法我的同学和我打赌说他月考英语输我一分给我100 我输他1分给他5块 我答应!上学期期末我考了51分,他考了87分,有希望赢吗 我们月考是在9月30号左右 我们现在是初三 有什么速成的学英语方法,用一年就可以有效果? 反映随机事件（ ）的数量,称为随机变量. 颂扬高贵品质的成语有哪些? 色彩的冷暖关系是客观的现象,还是主观?大家都知道,色彩的补色关系,并不是客观物质现象,而是人眼的一种视觉补偿和视觉残留现象.那么受光,背光的一冷一暖对立,是客观现象呢,还是像补色