计算：cos45°2+33tan30°-22sin45°+3tan60°-数学

更多内容推荐

• The letters for the boss___________ on his desk but he didn’t read them until 3 days later.A．were pu
• Clare finally decided to leave the company she ____ for since she graduated from university.A．would
• To prepare for the Olympic Games in summer, London ____ its largest ever exercise to test the respon
• Nobody but a few little boys ___ in the garden now.A．are playingB．playC．playsD．is playing-高一英语
• I _____ Wang Tao in the street yesterday. We _____ each other since he went to Beijing.A．met, didn’t
• Great changes have taken place in China since the People’s Republic of Chinain 1949．A．was foundB．fou
• 计算：3+27=______．-数学
• 25x4+16x-9x-数学
• 计算下列各式：（1）23-1624+3212（2）(25+52)2-(25-52)2-数学
• 计算：①(32+0.5-213)-(18-75)；②若a是5的小数部分，求a2-1a-1-a2-2a+1a2-a的值．-数学
• Don’t worry! Philip is quite used to in such busy streets as this.A．driveB．be drivingC．have drivenD．
• It has been raining for a day, but even though it hadn’t rained, we ________ there by tomorrow. A．ca
• 计算：2+8-218=______．-数学
• 解下列各题（1）计算：（6-215)3+612（2）解方程：2x2-7x+6=0．-数学
• 计算23-(1624-3212)的近似值为______．（精确到0.01，2≈-1.414，3≈1.732）-数学
• 计算：（1）45-515-1220；（2）已知x=2-10，求代数式x2-4x-6的值．-数学
• With the introduction of digital equipment, a growing audience_______ back to the cinema in the past
• 计算：（1）93-712+48+3（2）106×13-16×18．-数学
• If the weather had been better，we could have had a picnic．But it all day．A．rainedB．rainsC．has rained
• ―Hello！May I speak to Jack, please?―Yes, speaking.－Oh, I _______ your voice at first.A．don’t recogni
• Climbing Mount Tai great skills and not without risk.A．requires; isB．required; wasC．required; areD．r
• —Is this raincoat yours? —No, mine _____ there behind the door. A．is hanging B．has hung C．hangs D．is
• 计算：12+3+27-613=______．-数学
• 计算，17+43+17-43所得的值是（）A．23B．4C．-23D．-4-数学
• 下列计算正确的是（）A．3-2=1B．3+2=5C．23=6D．8-2=2-数学
• 计算：18-18=______．-数学
• 212-413+43-27．-数学
• If you _____ him yesterday, you _____ what to do now. A．asked … would knowB．had asked … would have k
• 计算45-1220+515-53145的结果是______．-数学
• It long before we the result of the experiment．A．will not be；will knowB．is；will knowC．will not be；kn
• Although many measures _____, the world’s economy is still going down.A．are taken B．were takenC．will
• Recently Peter________to do his homework, and instead insists on wasting his time playing com-puter
• I should say sorry to you but I ____trouble.A．did not mean causing B．did not mean to cause C．meant c
• （1）计算：239x+6x4-2x1x（2）0.5+32-213-18-75；（3）解方程：x2+4x-1=0（4）x2+3=3（x+1）．-数学
• 化简：18a-8a=______．-数学
• 下列运算正确是（）A．2+3=5B．2+2=22C．32-2=3D．18-8=2-数学
• 化简：239x+6x4-2x1x（x＞0）-数学
• 27-13+12．-数学
• Months ago we sailed ten thousand miles across this open sea，which the Pacific，and we met no storm．A
• My little son used to drink a lot of fruit juice but these days he mineral water．A．prefersB．is prefe
• Ladies and gentlemen，please fasten your seat belts．The plane ．A．takes offB．took offC．is taking off D
• ----- I’ ll give you a ring about eight.------Could you phone a bit later? I ______ dinner then.A．wi
• The number of foreign students attending Chinese universities _____ rising steadily since 1997.A．isB
• The volleyball match will be put off if it _____.A．will rainB．rainsC．rainedD．is rained-高二英语
• 18-72+50．-数学
• 计算：512-913+1248-数学
• By the time Jack returned home from England, his son_____ from college.A．graduatedB．has graduatedC．h
• The weather forecast says there will be wind from the northwest tonight. That always _____ snow with
• When you begin a sentence with “don’t tell anyone but …” there’s a 90% chance that the person ______
• The house belongs to my aunt but she _____here any more. [ ]A. hasn't lived B. didn't live