若解分式方程产生增根，则________；-八年级数学

更多内容推荐

• 给出下列说法：①分式方程28-x=0无解；②方程|x|x2+1=0无解；③方程x+1x+1=1x+1-1的解是x=-1；④x-2x2-4=0的解是x=2．其中，正确说法的个数为（）A．1B．2C．3D
• — Many people are in great need of extra food.— Yes. It is a challenge to________all their needs. [
• Beijing expected China's rich civilizations to________the world with a happy surprise at the op
• 阅读下列材料：关于x的方程：x+1x=c+1c的解是x1=c，x2=1c；x+2x=c+2c的解是x1=c，x2=2c；x+3x=c+3c的解是x1=c，x2=3c；…（1）请观察上述方程与解的特征，
• Simon was _____ why many of his friends didn’t turn up at his birthday party. A．limitedB．crashed C．s
• When the applause ______, Obama continued his speech.A．died offB．died downC．died outD．died of-高二英语
• Don't________what he says.________yourself, and you can do it very well. [ ]A. believe in; Beli
• Though he killed a boy, he was________to 20 years' imprisonment instead of death because of his
• 解方程：3x-2=2+x2-x．-数学
• Jack is being ____ in hospital but I don’t know how soon he’ll be all right.A．curedB．treatingC．treat
• He ______ his friend the moment he got the good news. A contacted with B contacted C kept in contact
• As the final exam is just around the corner,all the students are in reviewing the lessons carefully.
• You'd bettersome hot water into the kettle in case the tea cools down. [ ]A. addB. fill C. fill
• Try not to start every sentence with "the".the beginning of your sentences.[ ]A. VaryB. De
• Gases from cars are the air of our cities. [ ]A. protecting B. poisoning C. preventing D. providing-
• 解下列分式方程：（1）1x2-1+2x+1=0（2）x2x-5+55-2x=1-数学
• ．解方程：（5分）-八年级数学
• 铅笔每支元，钢笔每支y元，小明买了a支铅笔和若干支钢笔，共用去了23元，则钢笔买了___________支．-七年级数学
• 若，则分式的值是▲．-八年级数学
• He will _______ you next week if he is free. A．drop inB．drop in atC．drop in onD．call at-高二英语
• （本题6分）解分式方程．-七年级数学
• 解方程或不等式组（每小题4分，共8分）小题1:（1）小题2:（2）-七年级数学
• （8分）某中学库存960套旧桌凳，修理后捐助贫困山区学校．现有甲、乙两个木工小组都想承揽这项业务．经协商后得知：甲小组单独修理这批桌凳的天数是乙小组单独修理这批桌凳的天数-八年级数学
• I nearlywhen a hand grabbed me in the dark.[ ]A. jumped out of my skinB. jumped out of my faceC. got
• You do not need to take the medicine, but your head may less if you do so.[ ] A. hurtB. be hurtC. in
• 解分式方程：-九年级数学
• 若方程无解，则m=▲．-九年级数学
• 方程6x2+5x-32x+10=0的解是______．-数学
• ______I open my mouth, I put my food in it.A．At timesB．Some timeC．Every timeD．By the time-高二英语
• Oh, Mary, why are you killing your time this way ?Can’t you find something____ doing at all?A．useful
• To keep healthy, Professor Johnson ________ cycling as a regular form of exercise after he retired.A
• — I advise going to the beach this weekend.— That’s a good idea! Please stay home then. I’ll _______
• His eyes from the book . He stared at the wall and then went back to reading for a little.A．mixed B
• 解方程：（4+4=8分）小题1:（1）小题2:（2）—=8-八年级数学
• ．-七年级数学
• We were in our investigation(调查)by the cooperation of the local police.[ ]A. stopped B. cooperatedC.
• If you are planning to spend your money having fun this week, betterit-you've got some big bill
• His sacrifices for the country were never officially ________________, which made all of us feel dis
• 计算或解方程：（1）计算：8a-2b2•（2a2b-2）-3（2）计算：(13-12)×|-6|+(12)-2-(π-3)0（3）解方程：2x-1=4x2-1．-数学
• The computer system suddenly_____ while he was searching for information on the Internet.A．broke out
• -----How far apart do Tom and Jack live?-----______I know, they live in the same neighborhood.A．As
• The Internet has __________ big changes in the way we work.A．brought about B．brought inC．brought upD
• Near the table ______ a poor dog, which desired to satisfy his hunger with something ______ fell fro
• It may take a few week1s for your application to be ___.[ ]A. processedB. doneC. read D. watched-高二英
• 一项工程，甲单独做需要6天完成，乙单独做需要4天完成，求两人一起做需要的天数，若设两人一起做需要x天完成，则所列方程是…………………………………………………【】A．B．６＋４＝xC．6+4=D．-八年
• When the thief found the police had already him ,he ran away quickly.A．knownB．staredC．realizedD．spot
• 为迎接2011年“大运会”的到来，我市对20千米长的北环大道进行了改造，为了尽量减少施工对交通的影响，实际施工时平均每天比原计划多改造100米，结果提前10天完成改造工程，若-七年级数学
• The nurse a bandage to the soldier's wound.[ ]A. usedB. putC. appliedD. laid-高二英语
• （8分）某个体商贩在一次买卖中同时买进两件上衣，每件都以a元出售，若按成本计算，一件盈利25%，另一件亏本25%，那么该商贩在这次买卖过程中是赚了还是赔本了？赚或赔多少？-七年级数学
• 方程xx-2+12-x=12的解是______；若关于x的方程ax+1x-1-1=0无实根，则a的值为______．-数学