计算：2cos45°-16+（-14）-1+（π-3.14）0．-数学

更多内容推荐

• The play begins at 6: 40 pm. So we have to be at the theatre ________ 6:30 pm at the latest. A．after
• — Are you going to the football game?— No, the tickets are ____ expensive for me. [ ]A. very muchB.
• (2009年合肥市高三第一次教学质量检测)The police tried to get some clues from the suspect，but he remained ．A．silentB．
• Drinking too much has surely done a lot of harm ________ his health.A．onB．forC．atD．to-高一英语
• ________ his injury, Ricardo will play in Saturday's match with his teammates.A．Instead of B．In
• The government claims that the economy is improving, but this survey suggests ________.A．moreoverB．
• 计算：0.25×（12）-2-（π4）0+tan60°．（结果保留根号）-数学
• 如果（x﹣）0有意义，那么x的取值范围是[]A．x＞B．x＜C．x=D．x≠-七年级数学
• （1）计算：2sin30°+23tan60°-2-1（2）解方程：12x2+12x=0．-数学
• 计算：（12）-1•sin30°-（6-π）0．-数学
• .Sometimes parents’ control of young kids will be thought to be such an invisible rope with which to
• Marty’s disability is “one in a million”. ______, there are not many people in the world like him.A．
• The country’s car industry is so strongly protected that foreign cars are seen there.A．immediatelyB．
• I’d like to go with you, ______, my hands are full.A．howeverB．butC．althoughD．yet-英语
• Some people think clowns are only funny for children. _____________ , they can help people forget th
• You should be more careful, _______ you might meet with some accident.A．meanwhileB．otherwiseC．althou
• 计算：13(2006-π)0-|-13|=______．-数学
• 计算：（1）9-（-2）2+（-0.1）0；（2）（x+1）2-（x+2）（x-2）．-数学
• 先化简，再求值：(a-a-2a2-2a)÷a-1a，其中a=(12)-1+tan45°．-数学
• Those who________the plan tried to persuade those who didn't agree to it.[ ]A. was againstB. wa
• —Listen,there is some strange noise.This machine must be________.—I think so.You must have it checke
• In the evening the General Manager gave a banquet at the International Hotel ______ the foreign gues
• 计算：|-3|+(-2)2-(5+1)0．-数学
• --- Jim failed again in the maths examination. --- Don't scold him too much. _____ , he has tri
• .Tony had prevented Claire _____harming herself through her own sense of failure.A．fromB．forC．ofD．to
• （1）计算：(-5)0+12cos30°-(13)-1．（2）先化简，再求值．（2x+3）（2x-3）-4x（x-1）+（x-2）2，其中x=-3．-数学
• 下列计算正确的是（）A．（-0.1）-2=100B．-10-3=11000C．15-2=125D．2a-3=12a3-数学
• 下列计算，结果正确的个数（1）（）﹣1=﹣3；（2）2﹣3=﹣8；（3）（﹣）﹣2=；（4）（π﹣3.14）0=1[]A．1个B．2个C．3个D．4个-七年级数学
• They lived a life in the countryside.A．quietB．stillC．silentD．calm-英语
• Don’t do such things again，young man．________，you are not a child any longer．A．First of allB．After a
• His diet can not be considered as healthy because it contains a lot of fat _______ meat, cakes and c
• So far his spoken English is improved.A．muchB．betterC．wellD．greatly-英语
• His success is by talent as by energy.A．not so muchB．so not muchC．much not soD．so much not-英语
• 计算：（π-3.14）0+（12）-1+|-22|-8．-数学
• （1）计算：327+（x-2）0-(15)-1-2cos45°（2）先化简，再求值：（m2-1m2-2m+1+mm2-m）÷（1+2m），其中m=-3．-数学
• 计算：4+|-3|-（π-2013）0．-数学
• 计算：2cos45°-（-14）-1-8-（π-3）0．-数学
• 计算：2sin45°+(-2013)0=______．-数学
• Theory should by no means be separated from practice. ___, it's important tocombine theory with
• . I must go now. _____, if you want that book I'll bring it next time.A．IncidentallyB．Accidenta
• More and more high-rise buildings have been built in big cities ________ space.A. in search of B. in
• It is impossible.A．veryB．quiteC．ratherD．fairly-英语
• —Could you tell Jerry the manager is wanting him when you see him? —Sure, I will _______ I see him.A
• （1）计算：9-(12)-1+(2-2)0-2cos60°；（2）先化简：（1x+1-1）÷xx2-1，再选择一个恰当的x值代入求值．-数学
• （1）计算：-2-2+|1-1sin45°|×(8+2)；（2）解方程：xx-1-1=3x2+x-2．-数学
• 计算：|-1|+(-13)-1+（3.14-π）0-4cos60°．-数学
• One evening when it was swarm, I stayed awake ___________ until half past eleven in order to have a
• Because I’ve something important to do, I can’t come to see you this evening, ____ I’d like to.A．muc
• The waterfall can be seen _ __. Its sound may be heard __ two miles. It looks even more beautiful___
• Making a proper choice ______ the future will probably make much difference in our life.A．concerning