计算：2-9=（）A．5B．-1C．-3D．3-数学

更多内容推荐

• 一 When did the computer crash?一 This morning, while Ithe reading materials downloaded from some webs
• I feel so excited! At this time tomorrow morning I to Shanghai.A． will be flyingB． will flyC． have b
• —What is the price of gas these days?—Oh, it ____________ sharply since last month.A．is risingB．has
• —Flight CA 581_____________. I must be off now. —Have a nice trip.A．is being announcedB．has announce
• This is the first time we___________a film in the cinema together as a family.A．see B．had seenC．sawD
• ---- Did you know more about the mine accident、 ---- Oh, sorry, I had no idea. I ____ the Rescue Cen
• An excellent way to help memory is to connect information with pictures, which ______ as a memory-li
• ---Tom almost ran into a pole yesterday while driving on the highway. --- I suppose he ____ too fast
• 计算：2a27a+6a34a．-数学
• -I remember you were a talented pianist at college. Can you play the piano for me?- Sorry, I the pia
• Miss Li____as a secretary for five years in the company, and now she is general manager of it．A．has
• 10. By the middle of the 21st century , the vast majority of the world’s population ________ in citi
• 计算：(24-12)-(18+8)+2；(42-26)÷22×(2+3)．-数学
• — Alvin, are you coming with us?— I'd love to, but something unexpected.A．has come upB．was comi
• Last week I took the Civil Service Admission Examination, for which I _____ for nearly three months．
• 化简：48-3=______．-数学
• 若x=12(a+b)，y=12(a-b)，则x+y的值为______．-数学
• 计算：40-10110+10=______．-数学
• Sorry, I am too busy now. If I _____ time, I would certainly go for an outing with you.A．have hadB．h
• The doctor advised me to go on a diet because I _____ weight during the last two months.A．put onB．ha
• –I _______ as the manager in this company. –May I know since when?A．workedB．had workedC．have workedD
• 计算312+27的结果是（）A．93B．63C．92D．62-数学
• 化简：18-32=______．-数学
• —Hurry，Mary! You__________on the phone.—Oh，I__________.Thank you，Mom.A．have wanted;have comeB．will
• Peter had intended to take a job in business, but _____ that plan after the unpleasant experience in
• "The moment _____soon," he thought to himself, waiting nervously.A．cameB．has tomeC．was com
• 计算：(24-12)-(18+6)．-数学
• 计算：(24-12)-2(18+6)-数学
• 计算：239x+6x4=______．-数学
• Every few years, the coal workers ___________ their lungs X-rayed to ensure their health.A．are havin
• （1）a•3a+9a-a2-3；（2）945÷315×23223；（3）13+2+12+1-13-1．-数学
• The popular film Golden Compass ____ an imaginary world.A．set inB．is set inC．sets inD．is set on-高二英语
• —Did you have a good time meeting your old friends yesterday? —Yes, I did. I them since we graduated
• on the portrait, mother was deep in thought.A．Fixed her eyesB．Her eyes are fixedC．Her eyes fixingD．H
• 计算：（1）(45+18)-(8-125)（2）解方程2x2+x-1=0．-数学
• Although there are no classes in the afternoon now, no student ______ go out of school without the h
• Don’t worry. The hard work that you do now ______later in life.A．will be repaid B．was being repaidC．
• Our friendship ______ quickly over the weeks that followed.A．had developedB．was developingC．would de
• 计算：8-212．-数学
• Food supplies in the flood-stricken area. We must act immediately before there’s left.A．have run out
• （1）计算：1318-612+212（2）用配方法解方程：x2-4x-5=0．-数学
• （1）计算：20+8-45+32（2）计算：|3-4|-22+12（3）239x+6x4（4）a28a+3a50a3．-数学
• 33. The father asked the boy again, raising his voice a bit, but still ________ no reply.A．receiving
• 阅读下面一道题的解答过程，判断是否正确，如若不正确，请写出正确的解答过程．化简：-a3-a2•-1a+a2原式=a-a-a2•1a•-a+a=a-a-a-a+a=a．-数学
• 化简8+18=______．-数学
• If you the medicine, you better now.A．took, would feelB．had taken, feltC．had taken, would feelD．took
• ---- Are we going sightseeing next week?---- No. The plan ________ at the second meeting.A．had cance
• — I hear you _____ in a pub. What’s it like?— Well, it’s very hard work and I’m always tired, but I
• When I got home, I _____ I had left my wallet in the taxiA．was realizingB．realizedC．have realizedD．w
• -Have you heard about that fire in the market?-Yes, fortunately no one ______.A．hurtB．was hurtC．has