计算或化简（1）（12）-2×（3-2）0÷（-13）-1（2）4x2-4+42-x．-数学

更多内容推荐

• 计算或化简：（1）|2-tan60°|-（π-3.14）0+(-12)-2+1212（2）a-1+a2-1a+1．-数学
• David jumped＿＿＿to get the first＿＿＿the beginning of the sports. A．enough high； inB．enough highly； in
• The final score of the basketball match was 93-94. We were only ________ beaten. A．nearlyB．slightlyC
• No one can prevent the plansout.A．to be carried B．from carryingC．not to carryD．from being carried-高一
• Maybe there is some business aspect to the Royal Wedding of William and Kate Middleton but ________
• Tom was _____ to go to bed when the telephone rang.A．likelyB．about C．toD．around-高二英语
• It is _________ pleasant to take a crowded bus.A．by no meansB．by means ofC．by all meansD．by any mean
• Many developing countries are unwilling to pursue their economic development ______ destroying the e
• ___ the help of computers , there are no ___ problems.A．Under; soB．Under; manyC．With ;suchD．With ;so
• 计算（1）|-12|-9+(π-4)0-sin30°（2）tan60°-23-1+(12)-1+(-2007)0．-数学
• Work gets done ________ when people do it together, and the rewards are higher too. A．easilyB．very e
• （1-π）0=______．-数学
• When the exam is over, you should hand in your exam papers, finished or _____. A．somethingB．otherwis
• The beach is _________ walking distance of my house.A．atB．withinC．forD．to-高一英语
• When you drive home, you can’t be＿＿＿＿＿＿＿careful. A．veryB．tooC．soD．only-英语
• Please drop ＿＿＿＿＿＿＿ my home when you are free. A．inB．onC．in onD．in at-英语
• （1）计算：8+(12)-1-4cos45°-2÷12（2）解方程：x2-2x-2=0．-数学
• When asked about their opinion about the schoolmaster ,many teachers would prefer to see him step as
• 2-3等于（）A．-6B．18C．-18D．16-数学
• 计算：(12)-1+(5+3)°-2sin45°+12+1．-数学
• Wenchuan Earthquake Museum has been built_____the people who died in 5·12 earthquake last year.A． i
• —You don't seem to be quite yourself today. What's wrong?—Oh, I'm suffering from a co
• 细心算一算（1）（23+32）（23-32）（2）20+5-45（3）|-3|+(2+1)0-12．-数学
• — Do you think we’ll get somewhere in he future.— I believe it’s quite_____ that we’ll make a differ
• Eight children were killed and five were woundedthe second knife attack that happened in Fujian Prov
• ______ all the international effort being made, we have to have faith that there will be solutions _
• Such a problem is＿＿＿＿difficult for a primary school student ＿＿＿. A．so； to workB．very too； to work ou
• The plane got back to the airport and landed＿＿＿＿at last. A．safeB．safelyC．safetyD．save-英语
• Nick, it’s good for you to read some books __________China before you start your trip there.A．inB．fo
• __will I give up. I believe I can manage it.A．At onceB． At no time C．Right nowD．The instant-高三英语
• （1）先化简，再求值：（x-xx+1）÷（1+1x2-1），其中x=2+1（2）计算：-32+（-3）-2+（2×106）×（1×10-5）+（π-3）0．-数学
• （1）计算：12-|-1|+(12)-3-4cos30°（2）化简．(x+1x-xx-1)÷1(x-1)2．-数学
• It is______ acknowledged that he is honesty.A．universallyB．wellC．allD．badly-英语
• The schoolmaster hesitated ___ an instnat before he made the decision.A．forB．inC．atD．on-英语
• Who will succeedhis property after his death?[ ]A. inB. atC. toD. from-高二英语
• （-12）0的平方根是______，36的算术平方根是______；16的平方根是______．-数学
• He was homeless, so we took him ____．A．outB．inC．upD．down-高一英语
• The water level of the river has increased _________ half a meter since it began to rain 7 days ago.
• 计算：①8-2sin45°+(2-π)0-(13)-1②tan30°sin60°+cos230°-sin245°tan45°．-数学
• 计算（应有必要的运算步骤）．①2sin45°+cos30°•tan60°-(-3)2；②2-1+12-1-sin245°-(1+cos30°)0．-数学
• ______, in spite of everything, he managed to get through all his tasks in advance.A．SomehowB．Anyhow
• I’m sorry I didn’t phone you, but I’ve been very busy_____ the past couple of weeks.A．beyondB．withC．
• It was＿＿＿＿＿late to catch a bus after the party, there fore we called a taxi. A．too veryB．much too C．
• I can't make a decision now. I need _________ more time to think it over.A．ratherB．fairlyC．quit
• ______his arrival at the classroom on his first day at school, the teacher _______. [ ]A. At; was pl
• 已知a是锐角，且sin（a+15°）=32，计算8-4cosα-（π-3.14）0+tanα+(13)-1的值．-数学
• We decided not to climb the mountains because it was raining ＿＿＿. A．badlyB．hardlyC．stronglyD．heavily
• With new technology, pictures of underwater valleys can be taken color.A．byB．forC．withD．in-英语
• ----Do you really insist on going out to watch the football game? ---- I know it may rain. ______, I
• The roads are linedtrees，which have been planted to holdthe strong winds from the north.A．along; toB