（-13）-2的相反数是（）A．19B．-19C．9D．-9-数学

更多内容推荐

• Americans usually just say“Hi”or“Hello”， _______ a more formal handshake when they first meet you．A．
• 若（2x-5）0=1，则x的取值是（）A．x＞52B．x≥-52C．x＞-52D．x≠52-数学
• （1）计算：20100-(12)-1+9；（2）先化简(1x-1-1x+1)÷x2x2-2，然后从2，1，-1中选取一个你认为合适的数作为x的值代入求值．-数学
• 计算：2•8-（2-π）0-（12）-1．-数学
• 计算：32+(π-1)0-(13)-2．-数学
• He had planned to make a compromise，buthe changed his mind at the last minute．A．therefore B．otherwis
• The novel was concerned ______ the Second World War, while most readers are more concerned _____ the
• The lively boy suddenly appeared to be ________ quiet, so his mother knew something unusual must hav
• They were so late that they ____had time to catch the train.A．almostB．hardlyC．nearlyD．simply-高二英语
• 下列等式正确的是（）A．[（-1）2]3=-1B．（-5）8÷（-5）2=-56C．（-4）0=1D．（-2）2×（-2）3=26-数学
• (13)-1=（）A．13B．3C．-3D．-13-数学
• After the class was over，Li Ping apologized ________ the teacher ________ his coming late.A．for; toB
• —In early autumn Steve applied for admission to college. He wanted to gobut to Cornell University.—O
• We are taught that a business letter should be written in a formal style ________ in a personal styl
• In no way should we hunt and kill antelopes. _____, everyone should make great efforts to protect th
• 计算（1）|-2|-（-1）2002-（π-4）0（2）-52+(-36)×(54-56-1112)．-数学
• 计算：|-3|+（-1）2011×（π-3）0-16+(13)-2．-数学
• （1）解方程：1-x2-x-3=1x-2；（2）计算0.25×（-2）-2÷（16）-1-（π-3）0；（3）先化简(x+1x-1+1x2-2x+1)÷xx-1，然后选取一个你喜欢的x的值代入计算．-
• 计算：（1）2x+1-1x-1；（2）0.25×（-2）-2÷（16）-1-（π-3）0．-数学
• It’s high time you had your hair cut; it’s getting _____.A．too much longB．much too longC．long too mu
• 下列运算正确的是（）A．9=±3B．a3+a3=a6C．（m+n）2=m2+n2D．3-2=19-数学
• Mike was usually so careful, ________ this time he made a small mistake. [ ]A. yetB. stillC. evenD.
• The Chinese government holds that peace and development ________ the Taiwain Straits is the correct
• I saw Tom _____ into the classroom without _____.A．slide; found B．sliding; findC．sliding; being foun
• In order to keep fit，you will take exercise_________ and eat healthily．A．regularlyB．generallyC．extre
• He began to take English _______ only when he left school.A．carefullyB．trulyC．seriouslyD．strictly-高二
• As is known to all language learners, the newly learnt words will soon be forgotten unless ______ us
• 如果a=-0.32，b=-3-2，c=（-13）-2，d=（-15）0，那么a、b、c、d的大小关系为（）A．a＜b＜c＜dB．a＜d＜c＜bC．b＜a＜d＜cD．c＜a＜d＜b-数学
• 若已知分式|x-2|-1x2-6x+9的值为0，则x-2的值为（）A．19或-1B．19或1C．-1D．1-数学
• 计算：（-2009）0=______．-数学
• Eating properly and exercising _______ make one enjoy a longer and healthier life.A．normallyB．gener
• Our English teacher often asks us to keep a record of things that may _________ be forgot easily. [
• According to IQ scores, you are smartest from 18 t0 25, but you're wiser and more experienced _
• Nurses in this hospital try their best to make patients feel at _____.A．pleasure B．peaceC．comfortD．
• I went there yesterday to see my uncle .A．special B．especiallyC．speciallyD．especial-高二英语
• The news spread all over the world _______that Kim Jong Il, top leader of the Democratic People'
• — I think it’s beneficial to build a library near our dormitory building.— . It will be a great conv
• 下列运算中，正确的是（）A．（a5）2=a7B．4a2+2a2=6a4C．（-a-b）2=a2+2ab+b2D．2x-2=12x2-数学
• （13）-2+（-3）0=______．-数学
• 计算：12+2-1-(5-1)0+|-2|．-数学
• 已知ab≠0，a+b≠0，则（a-1+b-1）-1应等于（）A．a+bB．1abC．aba+bD．a+bab-数学
• In his speech, Marks made the point ______ far more people died from smoking than from taking drugs.
• We should consider what use can we make ______ such material.A．ofB．fromC．upD．in-高一英语
• _____ at the gate of the theatre, he found the ticket for the play was left at home.[ ]A. To arrive
• _____ all the shortcomings you mentioned ,he is a man to be depended on.A．In spite B．AlthoughC．Thoug
• -How do the shops make money if they sell at such low prices?-Manufacturers, it seems, are willing t
• The meeting achieved _______ a short statement, leaving many details to be worked out later．A．other
• 计算：2-2=______，（x2）2=______．-数学
• _____ all my teachers, Mr. Moore is the one who impresses me most.A．AtB．OnC．ToD．Of-高一英语
• —What time do we have to be at the gate of the museum?—______ the visitors begin to check in.A．Immed