若︱a-2︱+=0，则a2-b=．-八年级数学

更多内容推荐

• -----Are you still very busy?-----Yes, I ______ the report for the manager and it won’t take long.A．
• -----Where is your new home now?-----In the new developed zone. But I ______ downtown for five years
• Everybody in our hometown, men and women, young and old, ____sports and games.A．enjoyB．enjoysC．is en
• --- When shall we restart our business?--- Not until we _____ our plan.A．will finish B．are finishing
• Before ___ a loan ____, calculate (核算) your monthly costs.A．taking; offB．taking; awayC．taking; outD．
• 计算：．-九年级数学
• 计算：-七年级数学
• 在实数中，无理数有（）A．1个B．2个C．3个D．4个-七年级数学
• When the clock_________ twelve, all the lights went out.A．hitB．beatC．struckD．knocked-高一英语
• 在根式：①，②，③，④中，最简二次根式是（）A．①②B．③④C．①③D．①④-八年级数学
• （4分）计算：-三年级数学
• The country life _____ he had been used to ______ greatly last year.A．/; changed B．which; has change
• 一个长方体，长、宽、高分别为，，，它的体积是______________-八年级数学
• Don’t ______ life’s small joys while searching for the big ones. A．contradictB．overlookC．obtainD．con
• --- What is your strongest memory of the bombing attack?--- If I ______ rightly, we were about to ap
• ---Mom, where is my lunch pack?---Just where it _______.A．has beenB．had beenC．wasD．be-高二英语
• I don’t think she noticed the headmaster just at that moment, for she _______ the game on her cellph
• －的相反数是（）A．B．－C．D．-九年级数学
• 化简的结果是▲。-八年级数学
• 估计的值是在（▲）A．3和4之间B．4和5之间C．5和6之间D．6和7之间-八年级数学
• 能使有意义的x的取值范围是（▲）．A．x＞-2B．x≥-2C．x＞0D．x≥-2且x≠0-八年级数学
• Experts say walking is one of the best ways for a person to _______ healthy.A．maintainB．stayC．liveD．
• 下列各式中，不是二次根式的是（▲）A．B．C．D．-八年级数学
• 计算-九年级数学
• I ______ in Paris for many years, but I have never regretted my final decision to move back to China
• Joy _______ as a language teacher in China for two years before she went back to London.A．had worked
• 求7的平方根,正确的表达式是（）.A．B．C．D．-八年级数学
• —Did you find the missing couple in the mountain yesterday?—No, but we ______ to get in touch with t
• The dictionary still ______ where I ______ it a moment ago.A．lies; laidB．lied; layC．laid; laid D．lie
• --- Have you heard that Jenny, along with her classmates, to Harbin for the winter vacation?--- Real
• The boy is so naughty that he never his mother.A．disobeysB．obeysC．objectsD．annoys-高二英语
• （05·漳州）下列等式成立的是（）A．B．3+=3C．="-4"D．=3-九年级数学
• （8分）计算：-九年级数学
• 计算：-九年级数学
• Do you think you could ______ his voice on the phone?A．knowB．rememberC．recognize D．realize-高一英语
• Don’t disturb me. I_______ letters all morning and have written ten so far.A．have writtenB．am writin
• If city noises ___ from increasing, people ___ shout to be heard even at diner.A．do not keep; will h
• —That must have been a long trip.—Yeah, it _________ us a whole week to get there.A．takesB．has taken
• If you want to ________ a pleasant visit, find out as much as possible about the manners and customs
• 若-八年级数学
• As people ______ more wealth ,they tend to spend a greater share of their incomes.A． adopt B．attachC
• 要使有意义，则字母x应满足的条件是().A．x＝2B．x＜2C．x≤2D．x≥2-九年级数学
• 化简0.5+12-(13-412)-数学
• 计算：-九年级数学
• 计算：．-八年级数学
• Shirly ________ a book about China last year but I don’t know whether she has finished it.A has writ
• 函数中，自变量x的取值范围是（▲）A．B．≥C．≤D．＞-九年级数学
• （6分）设的小数部分为a，的倒数为b，求的值。-九年级数学
• 一艘轮船先向正东方向航行2小时，再向西北方向航行t小时。船的航速是每小时25千米。试用关于t的代数式表示船离出发地的距离；-八年级数学
• – Guess what, we’ve got our visas for a short-term visit to the UK this summer.– How nice! You _____