计算（1）30-2-3+（-3）2（2）a（a3）2+（a2）3-a•a5（3）（x+2）2-（x-1）（x-2）-数学

更多内容推荐

• He worked hard, ______ he passed the exam.A．in a resultB．as result C．as a resultD．for a result-高一英语
• Mr smith has little acquaintance_____ modern poetry while he has a wide knowledge ___ painting.When
• I could hardly tell the twins apart because their appearances are only ____ different.A．slightlyB．gr
• We hadsat down at the table, when the phone rang.A．possiblyB．hardlyC．virtuallyD．politely-高三英语
• . The English magazine is _______ easy; I can go through the articles without much difficulty.A．rath
• You must attend the meeting ____ at ten o’clock, as it is scheduled—not a minute early or late．A．acc
• When the great man arrived, the club’s manager picked him up _____.A．calmlyB．bravelyC．personallyD．po
• . Attention, coffee lovers! We have for you, the best coffee machine _____ invented.A．everB．alreadyC
• ----- how _____ are you driving now?-----A hundred miles an hour.A．fastB．longC．farD．quickly-英语
• Jane won't join us for dinner tonight and ________．[ ]A．neither won't TomB．Tom won't
• 71. Such a small man can’t _____ reach the balloon one metre higher than he.A．possiblyB．impossibleC．
• Don’t look______the designer only______she is a woman.A．down on;because ofB．upon down;becauseC．down
• —— Excuse me, is this Mr. Brown’s office? —— I’m sorry, but Mr. Brown＿＿＿works here.He left about th
• When Mom looked back on the early days of their marriage, she wondered how they had managedwith ____
• 解答下列各题：（1）计算：8+2（π-2009）0-4sin45°+（-1）3；（2）先化简，再求值：x2（3-x）+x（x2-2x）+1，其中x=3．-数学
• 计算：(-1)2+（π-3）0-（sin60°-1）•（3-2）-1．-数学
• （1）计算：tan60°-23-1+(12)-1+(x2+1)0．（2）化简求值：（a+2）（a-2）+a（4-a），其中a=2+1．（3）解方程：xx-1-2x=1-数学
• （1）计算：|-3|+2cos45°-（3-1）0；（2）解方程：x2+2x=2．-数学
• （1）计算：12-4sin60°+（5+1）0；（2）解方程：5x-1=3x+1．-数学
• 计算：a3b（a-1b）-2=______．-数学
• 计算：(-34)0=______．-数学
• 计算：(13)-2-(2010-π)0-4cos45°-(2-1)2．-数学
• 计算：（12）-1+（-2009）0-9+2sin30°．-数学
• The earthquake damaged many houses and bridges; ______, it caused over 2,300 deaths. A．otherwiseB．be
• It is most _____that the environmentalists will come to the area to investigate the possible damage
• We set off _______ the Three Gorges _______ a beautiful afternoon from Fu Ling.A．to; atB．from; onC．t
• ___________ ability and experience, he can’t be compared with you.A．In terms ofB．In case ofC．In favo
• -- Have you got everything ready for the party , Kate ? --- Yes, the decorations are all ___ now.A．i
• 设x=1+2p，y=1+2-p，那么y等于（）A．x+1x-1B．x+2x-1C．xx-1D．x-1x-数学
• 6. He is quite sure that it’s impossible for him to finish the task within two days.A．extremelyB．abs
• （1）计算：4-2tan45°+(π-6)0+3-2；（2）先化简：(1a+2-1)÷a2-1a+2，请你选取你喜欢的a的值代入求值．-数学
• He is naughty sometimes, but ____ he is a good boy.A．yetB．otherwiseC．althoughD．already-英语
• go straight on to university why not get some work experience first?A．Rather thanB．More thanC．As we
• , we lack practice and experience nowadays in dealing with the complicatedeconomic situation.A．Lucki
• Mary hurt her friend’s feeling, but she didn't do it ____purpose.A．withB．inC．byD．on-高一英语
• It’s known ___ us that a mouse has a good nose ___cheese. A．for ; forB．to ; forC．by ; toD．by ; at-高二
• I know my English cannot compete ______his.A．inB．forC．againstD．by-高一英语
• 若（x+1）0=1，则x的取值范围是______．-数学
• Yesterday I was walking downstairs when I missed my foot and had a bad fall, nothing serious _______
• 计算：8+(12)-1-4cos45°-2÷12×2．-数学
• I value my friend Tom’s friendship very much, but _______ I dislike his selfishness.A．in additionB．a
• ________the letters there are answers written by people who are supposed to know how to solve such p
• 计算：|1-2|-sin30°•（12）-2-18．-数学
• —Would you please tell me what time it is?—It is five minutes to tenmy watch.A．onB．atC．byD．in-高一英语
• This question is ______ easy, all the students can answer the question.A．too much B．too manyC．much t
• WHO is short _____ the World Health Organization.A．ofB．forC．toD．with-高一英语
• All the athletes competed _____ each other for gold medals in the Olympic Games. A．againstB．forC．bet
• 计算：(-2)3+(2-3)0+3338+(-0.5)-2=______．-数学
• Nothing gives him more pleasure than helping someone __________.A．in trouble B．on fireC．in ruins D．i
• – Does this bus go to the 84th street?--- No, 30th street is _______.A．the rather the bus will goB．a