Principal White has been working in the school for about 20 years, ____all his energy to teaching an

更多内容推荐

• 计算：(1x-1+1x+1)÷3x1-x2=______．-数学
• 观察下列各式：22-4+66-4=2，55-4+33-4=2，77-4+11-4=2，1010-4+-2-2-4=2，依照以上各式形成的规律，在括号内填入正确的数______，使等式2020-4+()
• 先化简，再求值：32x-1x+y(x+y2x-x-y)，其中x=2010，y=2011．-数学
• 化简：x2-4xx2-8x+16，其中x=5．-数学
• __________ to train his daughter in English, he put an advertisement like this in the paper, ______
• _________ more customers, many companies prefer to spend a lot of money in advertising. A．AttractB．A
• Everyone is looking forward to seeing the plan ________ in the near future. A．carrying outB．carry ou
• ________ in the traffic jam, she failed to catch the train, which mader her upset. A．Catching B．Havi
• You can make yourself _____ in English pretty well if you keep on speaking the language.A．understand
• -- What made your skin look so terrible? --_______ to the sunlight for a long time. A．Because it was
• 若1x+1y=2，求x+2xy+y3xy-2x-2y=______．-数学
• 先化简，再求值：(3x+4x2-1-2x-1)÷x+2x2-2x+1，其中x=2．-数学
• 有这样一道题，“计算y=x2+2x+1x2-1÷x+1x2-x-x的值，其中x=2008”，甲同学把“x=2008”错抄成“x=2080”，但是他的计算结果也是正确的，你说这是怎么回事呢．-数学
• 已知，a=-1，b=2，则式子ba+ab=______．-数学
• — Have you watched Gravity, _______ the best film in 2013?—Yes. It is a survival story _________ in
• 先化简，再求值：x2-1x+2÷(1x+2-1)，其中x=13．-数学
• 若x=30，那么xx-3-x+6x2-3x+1x的值为______．-数学
• 计算x-2x2÷(1-2x)的结果为______．-数学
• ________energy, we turn off the lights for Earth Hour on the last Saturday in MarchA．SavingB．To sav
• in her most beautiful skirt, the girl tried to make herself at the party. A．Dressed; noticingB．dress
• He often looks away from people when talking, and I can hardly stand______like this.A．his to behave
• 已知n=1n，求（mn-n2）÷m2-2mn+n2mn•mn-m2m2的值．-数学
• 化简x+1x-1-x2-2xx2-1÷x2-x-2x2+2x+1的结果是______．-数学
• 计算：(1+1m-1)÷mm2-1．-数学
• 先化简代数式x2-2xx2-1÷(x-1-2x-1x+1)，然后选取一个你喜欢的数代入，求原代数式的值．-数学
• 计算(1+yx)÷(1-yx)的结果是（）A．x+yx-yB．x-yx+yC．1D．-1-数学
• 先化简，再求值：x3-x2x2-x-1-x2x+1，其中x=2．-数学
• 计算a-1a÷（a-1a）的正确结果是（）A．1a+1B．1C．1a-1D．-1-数学
• Nankai University,_______ in 1919, has a history of more than 94 years. ( )A．foundB．foundingC．founde
• ---It is said that China will declare war on Japan soon. ---______, China will never be the first c
• 已知1x-1y=3，则2x-2y+xyx-2xy-y的值为______．-数学
• When first ______ to the market, these new products in their company enjoyed a great success.A．Intro
• ______ to as much English as possible is a good way to learn English well.A．ExposedB．Being exposedC．
• 求值：（1）1+xx2+x-2÷x2-1x+2，其中x=12；（2）y3-y(xy+1)2-(x+y)2÷(x+y)yx+1，其中x=-11，y=112．-数学
• 化简：a2-1a2+6a+9÷(a+1)×a2-9a-1．-数学
• 将分式化简得，则x应满足的条件是（）。-八年级数学
• Tom was the first ________ he was wrong.A．admitB．to admitC．of admittingD．for admitting[-高一英语
• Jack became seriously ill after ________ in polluted air for many years.A．breathedB．breathC．breathin
• 课堂上，朱老师出了这样一道题：“已知，求代数式（1+）÷的值．”那么代数式的值是（）．-八年级数学
• 化简的结果为[]A.B.C.D.-b-九年级数学
• —What’s made Mr. Grey so sad?—_____ three tickets to the pop art exhibition.A．LosingB．LostC．Because
• Alice kept quiet about the incident _______lose her job. ( )A．so not as toB．so as not toC．so as to n
• 先化简，再求值：(1x+1-1x-1)÷1x2+x，其中x=5．-数学
• ____on the Yellow River, the town lies____ south of China.A．Locating; /B．Situated; /C．Situating; in
• 化简求值：(mm+3-2mm+3)÷mm2-9，其中m=3．-数学
• Mrs Smith hurried back home after work，only _________that the kitchen was a mess A．to findingB．found
• 先化简：1x2-x-x-2x2-2x+1÷x-2x-1，再从0，1，2，3中选取一个合适的数作为x的值代入求值．-数学
• 已知3x2+xy-2y2=0，求(x+yx-y+4xyy2-x2)÷x2+2xy-3y2x2-9y2的值．-数学
• 当a=1-2时，求a+1a-1-aa2-2a+1÷1a的值．-数学
• As we all know, diligence is the path ________to happiness. ( )A．ledB．leadsC．leadingD．having led-高一英