化简，并选择你最喜欢的数代入求值。-九年级数学

更多内容推荐

• 先化简再求值：，其中x=．-九年级数学
• 先化简，再求值：），其中.-九年级数学
• 化简：。-九年级数学
• 先化简，再求值：，其中x=2。-九年级数学
• 计算：（1）；（2）。-九年级数学
• 先化简再求值，其中a=+1。-九年级数学
• 计算：。-八年级数学
• 约分。-八年级数学
• 化简求值：，其中x=。-九年级数学
• 若a=，则是值为（）。-八年级数学
• 已知-=4，则的值为（）-八年级数学
• 计算：-八年级数学
• 已知x+y≠0，x≠z，y≠z，且，则必有[]A.x=0B.y=0C.z=0D.xyz=0-八年级数学
• 计算：（）。-八年级数学
• 化简：（1）（2）-八年级数学
• 先化简，再求值：÷（），其中。-八年级数学
• 当（）时，分式的为正数。-八年级数学
• 先化简，再求值：，其中。-八年级数学
• 已知公式，用表示R的式子为[]A.B.C.D.-八年级数学
• I would rather starve to death than _____ for food. [ ]A. beg B. begging C. begged D. to beg -高二英语
• 计算（）-九年级数学
• Great attention must be paid ____ welfare, especially in the poor area. [ ]A. develop B. to develop
• —Could you tell me how the sea sand comes about?— Sea waves dash against the rock. In this way, the
• 已知：则下列变形错误的是[]A.R=r1+r2B.R=C.R=D.-八年级数学
• Mr. Zhang is ill, so I'll _____ till he is well again.[ ]A. take placeB. take his place C. take
• She used _____ on the right in China, so she was not used _____ on the left in England at first. [ ]
• Children sometimes find it hard to _____ their parents' expectations. [ ]A. come up with B. liv
• His father insisted _____ him, but he insisted he _____ nothing to do with the matter. [ ]A. on puni
• He prefers to stay at home rather than _____ out to play. [ ]A. goB. goesC. goingD. gone -高一英语
• Now more and more young people _____their spare time _____to improve themselves at school or college
• He there with us though he was not feeling well. [ ]A. insisted on going B. insisted to go C. insist
• The coach asked his staff to ______the large group of journalists waiting for him to announce his tr
• A huge forest fire _____ after the lightning struck, but luckily no one died or got hurt. [ ]A. brok
• My father _____ take a nap after supper, but now he's _____ taking a walk. [ ]A. got used to; u
• He _____ some French while he was away on a business trip in Paris.[ ]A. made out B. picked up C. ga
• The money collected should be made good use _____ the people in Taiwan who suffered a lot in the ear
• No one has come up with a better explanation of why dinosaurs _____.[ ]A. died away B. died forC. di
• We kept watching the house in the garden until the lights of the house ______. [ ]A. went downB. wen
• In order to finish the research, the professor always ______, for every day the light in his room di
• The word "moon" is an ancient word _____ "mouth". [ ]A. related to B. related wi
• I simply couldn't understand how it _____ that you did so much work within such a short time.[
• Have you seen Jack recently? I wonder_____ with his classmates. [ ]A. how is he getting along B. wha
• These are all good team sports and will help you ______ your strength and you will meet lots of peop
• I knew he failed in the final exam the moment I ______ him crying alone in the classroom.[ ]A. at th
• — How did you find him out? — I ______ his name by chance on the list. [ ]A. came down B. came about
• We don't have to ______ every word that we don't know when reading. [ ]A. look up B. refer
• Once she has _____ his mind, nothing can change it. [ ]A. taken up B. made up C. given up D. grown u
• —I have learned that you will take part in the sports meeting next week.— Yes. Bue I am thinking of
• My sister seems to prefer _____ music to _____ me. [ ]A. listening to; talking to B. to listen to; t
• I ____ walking in the garden ____ watching TV in the room. [ ]A. like; instead B. would rather; than