计算与化简：（1）12+2cos60°+sin45°-(32tan30°)0；（2）(1a+1+1a-1)÷aa+1+1．-数学

更多内容推荐

• --- Is the food served in the restaurant tasty? ---I’m sure that else in this town can you find a be
• （1）计算：（-1）2÷12+（-2）3×34-（12）0；（2）计算：[（2x-y）（2x+y）+y（y-6x）]÷（2x）．-数学
• — I don’t feel sympathy ______the beggars who actually have the ability to work.— I am in sympathy _
• Everybody was touched _____ words after they heard her moving story.[ ]A．beyondB．withoutC．ofD．in-高三英
• Ladies and gentlemen, I have the great privilege____ introducing our speaker for tonight.A．inB．ofC．a
• It’s always difficult being in a foreign country , ____ when you can’t speak the local language .A．g
• 计算：-6-1=______．-数学
• 计算：-（13）-2+|-3|-0+364．-数学
• Tom is wise than smart. Few people can solve such a problem but he can.A．no lessB．no moreC．lessD．mor
• Little children should go to school to learn something. ______，they should learn how to behave well
• The company was named Gates Hall ______ a man named James Gates.A．in need ofB．in search ofC．in favou
• 计算．（1）（1-π）0-3•sin60°+（-2）3•(14)2（2）(12)-1-2cos45°+3×0．-数学
• Although this medicine can cure you _____your illness，it has a bad effect ________you.A．for；in B．for
• .Could you keep silent a few minutes, please? You are here_________.A．in a wayB．on the wayC．in my wa
• I admired my classmate Lisa very much. ______ her prettiness, she was smart and helpful.A．Except for
• The museum was___opened this morning and some officials attended the opening ceremony(开幕式).A．globall
• It has been said that one can experience four seasons in the course of a single day in no country Br
• - Is this the dictionary you want?-- Oh, that’s not what I want. I mean the New English-Chinese Dict
• The demand for _____ skilled workers is still increasing.A．highB．higherC．highlyD．more highly-高一英语
• We are onlyglad to do anything we canher.A．very; helpingB．very; helpC．too; helpD．too; to help-高三英语
• What he did ______ what he said moved us.A．more thanB．other than C．rather thanD．no more than-高三英语
• Although she doesn’t like to live in the country, _______ , she goes there for a picnic．A．once in a
• Glancing ______ his shoulder, Eric could see the dog was running after him．A．overB．acrossC．throughD．
• 计算：13+2+(-2)2×132+2sin30°-(32-2008)0．-数学
• 若实数m满足m2-10m+1=0，则m4+m-4=______．-数学
• 计算（1）|-2|-9+(π-3)°（2）(1+x-2x+2)÷2xx2-4-数学
• The building was named Ford Hall________ a man named James Ford.A．in place ofB．in celebration ofC．in
• We couldn’t believe the news,for it was__________ good. A．surprisedlyB．surprisinglyC．likelyD．lovely-
• . Jim’s leg was ______ damaged in the accident. He now walks with a limp.A．permanentlyB．increasingly
• During our argument, the teacher said a lot of unilateral(片面的) words ______ the other student who di
• Water, _____ we cannot live, exists in the form of liquid, gas or solid. A．from which B．on which C．w
• With so many hungry children seated round the table, the food disappeared ______.A．in timeB．at a tim
• 计算：-32+（5-π）0-|1-3|+(-13)-2．-数学
• Parents are advised to take pressure their chileren and give them some encouragement before an exam.
• Most of the fans felt rather disappointed at the concert. They said it could have been _______ organ
• 解答下列各题：（1）计算：(12)-1-(2010-3)0+4sin30°-|-2|；（2）化简并求值：(x-x-4x-3)÷x2-4x-3，其中x=5．-数学
• This is a_______complicated(复杂的)problem．I don’t know how to solve it.A．veryB．much tooC．muchD．too muc
• Sometimes advertisements make________ possible for companies to sell the customers________ money ca
• The average cost of school residential trips was ￡ 48 in primary schools and ￡ 55 in secondaries in
• （1）计算：8-(3-1)0+|-1|（2）化简：6m2-9÷2m-3-mm+3．-数学
• ______ having a busy schedule, Ariel Lin attended an environmental art exhibition. A．Despite ofB．In
• 计算2sin60°+(-2)-1-(2-3)2÷(21-2)0．-数学
• China now aims to boost domestic demand, and this ______ would help the global economy.A．in shortB．o
• 计算：(13)-1×(π-10)0-12+|-23|+(-1)2．-数学
• I lost my wallet last week, but ____ it didn’t contain much money at that time.A．luckilyB．hopefullyC
• He came home______yesterday.A．lateB．latterC．latelyD．later-高二英语
• Their university is located on a beautiful lake, ____ of this developing city. A．southeast thirty mi
• There, a big memorial has been built______ him, who devoted himself to the poor.A．in favor ofB．in m
• 计算：（1）2-1-tan60°+(5-1)0+|-3|；（2）先化简再求值：a-1a+2•a2-4a2-2a+1÷1a2-1，其中a满足a2-a=0．-数学
• We met an old friend in New York ____our expectation. She waved at us _____ the street when she saw