化简：8-18+2．-数学

更多内容推荐

• 计算：1236x+6x4-2x1x．-数学
• 化简：①a2b-a2b+ab-a2b(a≥0，b＞0)②4x+22x-128x-4x(x≥0)-数学
• The Internet connection for the entire area _________ when there was a sudden power cut yesterday.A．
• Quantities of precious jewelry_____ buried_____ in the earth. A．was found; deeplyB．were found; deep
• Crusoe found that nine savages seemed to be eating something which they ___ on the fire.A．have cooke
• 计算：12-(818+1327-0.5)．-数学
• 计算（1）312+(-12)-(-13)+223（2）-82+3×(-2)2+(-6)÷(-13)2．-数学
• We had thought Carla would say a lot about her job interview, but she ____ it.A．doesn’t mention B．di
• 计算题：（1）-97+37-27（2）-415÷710+6-数学
• 化简：8ab-b2ab-ab2a（a＞0，b＞0）-数学
• 计算：28-63．-数学
• You ____ television. Why not do something more active?A． always watchB． are always watchingC． have a
• —Waiter, what about my coffee? I______ for over 10 minutes.—Sorry, sir. It will just be a momentA．am
• All visitors to this village______ with kindness.A．treatB．are treatedC．are treatingD．had been treate
• A highway bridge ______over the river. They hope to finish it next month.A．was builtB．is builtC．has
• The silence in the dark building was scaring. No sound and voice____ heard at that moment.A．wereB．wa
• You don’t have to pay for your flights ; they’re in the price of your holiday .A．concludedB．heldC．se
• 化简并计算：（1）27+2-8-12（2）23-(1624-3212)（精确到0.01）-数学
• ---Hurry, John!---Oh, damn! Both my legs are nearly to give out. I ____for hours.A．had walked B．walk
• 218-418+332．-数学
• 计算12-(818+1327)．-数学
• 212+348-475．-数学
• 327a-9a3+1275a．-数学
• 计算：12-18-0.5+13-数学
• Scientists have created GM tomatoes which ______ fresh for 45 days, three times as long as normal to
• -----Excuse me, but I wonder if Joan is available at 3:30 this afternoon. -----I’m afraid he _______
• －Can you pick me up after work? My car ______.－With pleasure.A．is going to be repairedB．has repaired
• 计算：3+12-318+72．-数学
• -- Will you go to the show next Monday? -- Yes. Every boy and every girl in the area _____ invited.A
• 计算：27-12+45=______．-数学
• （1）计算：12+(1-2)2；（2）解方程：x2-4x=1．-数学
• 计算（1）（-10）2-(-7)2+12（2）32-512+618．-数学
• 下列计算中，正确的是（）A．2+3=23B．6+3=9=3C．35-23=(3-2)5-3D．37-127=527-数学
• 32-8+12．-数学
• 计算：12-13-113．-数学
• 计算：(-3)2+8-18．-数学
• What he has achieved still _________ all the people around．A．astonishesB．astonishedC．astonishingD．as
• The old ladyher husband for forty years.A．has married toB．has got married toC．has marriedD．has been
• 计算：36-(-3)2．-数学
• By the time he realizes he _____ a mistake, it’ll be too late for him to change his mind.A．makesB．ma
• --HI, Tom. It’s a long time since we met last time. Is everything going well?--Oh, I _____ for the f
• （1）计算：275-327+12；（2）计算：2sin60°-cot30°+tan45°．（3）解方程：x2-6x+1=0．-数学
• His uncle went abroad in 2010, and _______since．A．has not been heard ofB．had not been heard ofC．had
• —I'm trying to find yesterday's newspaper. Have you seen it? —I'm afraid that I _____
• 解答下列各题：（1）计算：（48+20）-（12-5）；（2）解方程：x2-2x-4=0；（3）解方程：3（x-5）2=2（5-x）；（4）计算：3tan230°+2(sin45°-1)2．-数学
• 下列计算正确的是（）A．2+3=5B．3-2=1C．32-8=2D．3+3=33-数学
• 计算：(24+0.5)-(18-6)．-数学
• 计算（1）计算：(24+0.5)-(18-6)（2）解方程：3x（x-1）=2（x-1）-数学
• My parents have promised to come to see me before I _________ for Africa.A．have leftB．leaveC．leftD．w
• 计算：12-513+0.27+13．-数学