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计算器怎样进行角的运算 计算器在计算时总是按一定的程序进行,在开始计算时,输入的数字是+2,按程序可计算（+2）乘（+5）加（-7）等于3,因为3不大于150,所以要把它作为第二次输入数据继续进行运算,这样周而复始地 有一小球,从离地面1.8m高度处,以初速度大小10m/s,方向与水面成45°斜向上抛出.（不及空阻,g取10m/s*2）求：（1）小球能到达的最大高度（2）小球落地所需要的时间 1.Everyone should know （ ）to save themselves when a fire breaks out.A.whether B.what C.when D.how 2.If I find his phone number,I( )you.A.tell B.told C.will tell D.have told 1.________ (compare) to other animals,hibernating bears look different.________ (compare) hibernating bears to other animals,we may easily find the difference.2.With my poor English,I’m afraid I can’t make myself _____ (understand) the long story 1.none of us objected to ____ George to the bithday partyA.invite B.inviting C.have invited D.invited2.When you find something in your writing that needs___,you should mark it on the parper.A.to be correcting B.correct C.to correct D.correcting 3.The 小明在数学活动课上提出了如下方法画一个锐角的角平分线 任意画∠AOB,在OB上任意取一点C,过点C画直线CD平行于OA：在OA上任取一点E过点E画直线EF∥OB交CD与分别量得∠AOB,∠EFC的度数可得结论：在测量∠AOB和∠OEF的度数可得结论： 预防医学计算题,求大神,速回.用有效氯含量为25%的漂白粉消毒300升水源水；若将其配制成10%的溶液,设该饮水的耗氯量和余氯量均为0.5mg/L,计算需加10%氯制剂溶液多少量? 医学统计计算题,某市100名7岁男孩平均身高120CM,标准差为4.8CM求标准误 变异系数 高一英语填空1填写单词1、At the party the naughty boy ＿ his father's intonation,which made all the guests laugh.2、It's a good way to know what is happening in the world by reading the h＿(h开头的单词)3、Having realized I was stud 高一英语填空题目（一道）,Don't ______（使不安）yourself about it—let's just forget it ever happened. 几道三角形问题,急求!1、周长为30,边长都为证书的不等边三角形有____个；周长为2008,边长都为整数的等腰三角形共____个.2、一个变数是奇数的凸多边形中,已知除两个内角外,其余内角和为2390 3.等腰三角形的周长是25 cm,一腰上的中线将周长分为3∶2两部分,则此三角形的底边长为__ ___.5．如图,在△ABC中,∠C=90°,AD平分∠BAC交BC于D,CD= 7 cm,则点D到AB的距离为 .2．在线段、直线、射线、角 从1、3、4、6、8五张卡片中任意抽取俩张,和是奇数的概率是多少? 一辆汽车一小时行驶120千米,则每分钟行驶2千米,其物理意义： 给点阳光就灿烂 给点阳光就灿烂的作文450字左右.老师布置的作文,全班每一个会的!快是没一个会的,打错了!呵呵! 请帮忙翻释这篇英语In early days,no medical college took a woman student.Elizabeth Blackwell.was determined to become a doctor.The young American wrote again and again to a munber of medical colleges,asking if she could be admitted,but each t www.therawdiet.comThe results of research on zeolite are very impressive:1.Zeolite appears to prevent and may become an important treatment for cancer.In one study,78 percent of the 65 participants with terminal cancer (all types) are now in complete 英文翻释机械有限公司 用英文怎么说?赞扬机械有限公司 普通话测试中,阅读文章字读错了怎么办? 小悦悦时间的英语作文 关于三角形的.如图,在△abc中,∠acb=90°,ac=bc,ae是bc边上的中线,过c作cf⊥ae,垂足为f,过b作bd⊥bc交cf的延长线于d.（1）求证：ae=cd；（2）若ac=12cm,求bd的长. 帮忙英文翻释The first thought that struck Lucy when she awoke was how quiet everything seemed on board the spacecraft.She didn't hear any of the others.The only sound was the constant low hum of the ship as it found its way among the stars.Quic matlab计算结果显示的问题,怎么让计算结果显示的好一些,我用format short 等都不能输出满意的结果l =-((8653397221580999*l^2)/2918332558536081408 - (4727625121529857*exp(l/9))/618475290624 + 4194117596558567/549755813888)/ matlab设定变量我在命令窗口输入x=-6:0.05：6；a=0.1；回车后又输入y=x+a*cos（x）/((cos(x))^2+1)^0.5;这时提示?error using==>mpower Matrix must be square.请问这个问题如何解决? matlab中怎样设定整数变量要是程序中要求一个变量为整数，该怎么办用那些函数确实可以取整，但整数规划问题中，要求决策变量本生就为整数，而不是把数从小数转化为整数 由于不良健康状况她没有参加运动会.英语翻译,中含unable 英汉互译：健康状况好 他询问了我的健康状况.英语翻译 请帮忙翻释成英语今天是国定假日,公司没人上班