【february怎么读,】-查字典问答网
- 平行四边形面积公式推导标准答案是转化为矩形进行推导我的方法是分割成两个三角形,然后证明这两个三角形全等,有三角形面积公式退出平行四边形面积公式,请问我的方法是否正确,如果错
- 设二维随机变量(X,Y)的概率密度为f(x,y)=6x,0≤x≤y≤10,其他,则P{X+Y≤1}=______.
- 阅读理解Friendshipsaresomeofthemostimportantrelationshipsthatwewilleverhaveinourlives.Buthowtobuildasolidfriendship?Herearefivetipsforyou.Tip1.________
- 1—I'mnotsure___theexperimentI'mdoingwillsucceedornot.—Ifyoufail,youmaytry___itinanotherway.aif,doingbthat,doingcwhether,tododthat,todo我想不通,我觉得应该是whetherdoing2Nowhereelseistheresuchperfectsi
- 3道英语1.thestudentsincollegesanduniversityalltakeup_____thecoursesleadingtoacertaindegree翻译下我看不懂2Sheworksataservicecentreforthepeople.FOR后面的是作补语还是状语?3Theyoungpeopledonothavetheir
- 忐忑不安和自作自受的意思
- 英译汉TheChinesegovernmentknowsitwillhavetotryitsbesttoimprovefoodsafetyTheChinesegovernmentknowsitwillhavetotryitsbesttoimprovefoodsafety.sothatChinesefoodcanmovetheinternationalmarket.Todothis,theChinesego
- 有谁能把三角形有关的计算公式写出来吗`~?谢谢急用
- 0.376除于47.列竖式计算,并验算
- 【英语翻译Onceyouhavehadthedisease,youareimmunetoitfortherestfortherestofyourlife,whichmeansthatyoucannotgetitagain.】