（1）计算：（3.14-π）0-22×34+(-12)-3+|-3|（2）先化简：(x2-2xyy+y)÷x2-y2xy+y2，当x=2时，再从-1＜y＜2的范围内选取一个合适的整数y代入求值．-数学

更多内容推荐

• 计算：（π-3）0+2-1=______．-数学
• 若102a=25，则10-a等于（）A．15B．-15C．150D．1625-数学
• Harry Potter has even become part of the school curriculum, much ____ the pleasure of the schoolchil
• Among customers there are different preferences __________ what is attractive．A．in honor ofB．in plac
• The shooting center is about 50 kilometres ________ the city of Beijing. A. in south ofB. the south
• You’d better book the tickets in advance; _______ we may miss the concert.A．howeverB．thereforeC．neve
• The airline stewardess (空姐) said to passengers on ______ with a beautiful smile, “welcome _________!
• It will cost a lot of time. __________I think we shall need it and it will certainly be useful to us
• 2-1的倒数是（）A．12B．-12C．2D．-2-数学
• 下列计算正确的是（）A．30=0B．-|-3|=-3C．3-1=-3D．9=±3-数学
• ____his great love for the works of J. K. Rowling, he has a broad range of interest in other Englis
• --- What shall we prepare for our picnic this weekend? --- Well, let’s discuss it ______ lunch.A．atB
• 已知(x-1)x2-1=1，则x的值为（）A．±1B．-1和2C．1和2D．0和-1-数学
• 若2x=132，则x等于（）A．5B．-5C．4D．-4-数学
• All of us are_____aware of the cause of this failure, so do not make the same mistake again.A．wellB．
• Next to biology , I like physics ________.A．betterB．bestC．the betterD．very well-英语
• 计算：(-1)0+(13)-2=______．-数学
• He’s given me so much help that I really want to do something for him _____.A．in turnB．by turnsC．in
• There are solid reasons for China to claim ownership of the Diaoyu Islands, which lie about 200 mile
• Usually John would be late for meetings. But this time, _____ to my surprise, he arrived on time. [
• 计算(12)-1的结果是（）A．12B．-12C．2D．-2-数学
• I was deeply impressed ________ the speech by the mayor of Shanghai before the final voting for EXP
• （110）2+（110）0+（110）-2计算后其结果为（）A．1B．201C．1011100D．1001100-数学
• -- What did he say ________ his stupid behavior?-- He admitted having made a serious mistake. A．in
• Tom is easy-going,___ everyone likes playing jokes.A．with whomB．for whomC．on whomD．to whom-高一英语
• Stress can be extremely damaging to your health. Exercise, _, can reduce its effects.A．at the same t
• He was beaten by his father because of being naughty. ____, he became silent.A．SinceB．Since then onC
• 计算（-2ab-1）3（ab）3=______．-数学
• We sometimes have to meet some difficulties, but we should develop a good attitude _______ life.A．in
• He has called several times this morning; _____ there is something very important.A．really B．obvious
• 计算：（1-3）0-12+2sin60°-|-3|-数学
• 下列运算中，正确的个数有（）①m3+（-m3）=m6；②m2•m3=m6；③（-2xy）4=8x4y4；④x3n÷xn=x3；⑤(-5)-2×50=15；⑥（3.14-π）0=1A．1个B．2个C．3
• 下列计算正确的是（）A．-24=16B．2-2=-14C．81=±9D．5-2=125-数学
• Don’t turn round .Go______ on till you see the hospital.A．downB．aloneC．aheadD．straight-高一英语
• ---- Do you think it's a good idea to make friends with your students? ---- _____ , I do．I thin
• This kind of cloth feels _____ and sells_____.A．softly; niceB．soft ; goodC．soft ; wellD．soft ; nice-
• I should like to buy a house, modern, comfortable and ____, in a quiet place.A．first of allB．after a
• Because of the rise of sea level, some islands will disappear. _____ people of certain countries wil
• One day, when I was walking in the street, someone dropped a pie from a window above, and it _______
• .—Have you moved into the new house?—No,the building is_________ construction.A．atB．underC．forD．in-高
• When we got there, he was about to leave, so he only had time to explain _____ to us what he though
• 下列算式，计算正确的有①10-3=0.0001；②（0.0001）0=1；③3a-2=13a2；④（-x）3÷（-x）5=-x-2．A．1个B．2个C．3个D．4个-数学
• 计算：2-1等于（）A．-2B．-12C．12D．0.2-数学
• Anyone, whether he is an official or a bus driver, should berespected.A．especiallyB．equallyC．natural
• 下列计算正确的是（）A．（-ab）4÷（-ab）2=a2b2B．（-3ab）2=-6a2b2C．（-1）-1=1D．5a2+2a2=7a4-数学
• Though he was____ trouble after he was wounded, he managed to escape____ caught by the enemy.A．out o
• “Perhaps we need to send for Dr. Smith to see what we can do about it,” Father suggested ________ to
• I heard the alarm ringing all the morning. ____ something very urgent happened.A．ReallyB．ObviouslyC．
• 计算：（-2010）0+|-1|=______．-数学
• The test not only helps make our _____ acquired knowledge permanent, but also enables us to find out