GRE数学考试备考100题
<p> 1.往一圆柱体的容器了灌水，速度是每分钟1000立方厘米，圆柱体里的水以每分钟0.01厘米的速度上升，问该圆柱体的底部圆形的半径?</p><p> 2.<span word="x">x</span>+<span word="y">y</span>1, 比较<span word="x">x</span>^2+<span word="y">y</span>^2 与1的大小</p><p> 3.在区间所有整数中，以03结尾的数占总数的比例：0.01</p><p> 4.已知的绝对值小于2，在数轴上表示<span word="x">x</span>的区间。</p><p> 5.已知<span word="x">x</span>,<span word="y">y</span>,15,25的平均值为22，比较<span word="x">x</span>,<span word="y">y</span>平均值与22的大小</p><p> 6. 某种溶液浓度为125<span word="gram">gram</span> <span word="per">per</span> <span word="liter">liter</span>, 转换成 <span word="ounce">ounce</span> <span word="per">per</span> <span word="gallon">gallon</span>,求表达式.已知 1 <span word="ounce">ounce</span>=28.<span word="xxx">xxx</span> <span word="gram">gram</span> <span word="and">and</span> 1 <span word="gallon">gallon</span>=3.875 <span word="liter">liter</span></p><p> 7. <span word="x">x</span>,<span word="y">y</span>,<span word="z">z</span> 均方差为<span word="d">d</span>, 求<span word="x">x</span>+10,<span word="y">y</span>+10,<span word="z">z</span>+10的均方差</p><p> 8. 1的概率是0.8,2的概率是0,6,问是1或是2或是<span word="both">both</span>的概率,1-0.60.8=0.92.</p><p> 9. 还有一组测量数据中,12.1比<span word="mean">mean</span>低1.5个标准差,17.5比<span word="mean">mean</span>高3.0个标准方差.问<span word="mean">mean</span>是多少.13.9</p><p> 10. 图表题,1992年总和是50,96年是60,每年至少增长1,问最大的年增长:7.0</p><p> 11.<span word="x">x</span>+<span word="y">y</span>=52<span word="x">x</span>+2<span word="y">y</span>=8之间最短距离与1比较 1</p><p> 12. 以40<span word="miles">miles</span>/<span word="hour">hour</span>速度经过一1.5<span word="miles">miles</span>的路，若超速则罚款<span word="fine">fine</span>=50+10，现一人用108秒通过此路，问她的<span word="fine">fine</span>=? <span word="key">key</span> 150</p><p> 13. <span word="xyz">xyz</span> <span word="togather">togather</span> <span word="finish">finish</span> <span word="the">the</span> <span word="task">task</span> <span word="for">for</span> 9 <span word="hour">hour</span>, <span word="xy">xy</span> <span word="togather">togather</span> <span word="need">need</span> 12 <span word="hour">hour</span>,<span word="z">z</span> <span word="alone">alone</span> <span word="needs">needs</span> ? <span word="hour">hour</span>. <span word="key">key</span> 36</p><p> 14. 直线<span word="l">l</span>.在<span word="X">X</span>轴截距是3，在<span word="Y">Y</span>轴截距是4。 直线<span word="m">m</span>.在<span word="X">X</span>轴截距是4，在<span word="X">X</span>轴截距是3。 比两个直线的<span word="sloop">sloop</span>. 注意都为负 <span word="ml">ml</span></p>
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