英语翻译AMC82009年的题1.The five pieces shown at right can be arranged to form four of the five figures below .Which figure cannot be formed?2.A sequence of numbers starts with 1,2and3.The fourth number of the sequence is the sum of the prev

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英语翻译AMC82009年的题1.The five pieces shown at right can be arranged to form four of the five figures below .Which figure cannot be formed?2.A sequence of numbers starts with 1,2and3.The fourth number of the sequence is the sum of the prev

英语翻译AMC82009年的题1.The five pieces shown at right can be arranged to form four of the five figures below .Which figure cannot be formed?2.A sequence of numbers starts with 1,2and3.The fourth number of the sequence is the sum of the prev
英语翻译
AMC82009年的题
1.The five pieces shown at right can be arranged to form four of the five figures below .Which figure cannot be formed?2.A sequence of numbers starts with 1,2and3.The fourth number of the sequence is the sum of the previous three numbers in the sequence:1+2+3=6.In the same way,every number after the fourth is the sum of the previous three numbers.What is the eighth number in the sequence 3.The triangular plot of land ACD lies between Aspen Road.Brown Road and a railroad.Main Street runs east and west,and the railroad runs north and south.The numbers in the diagram indicate distances in miles.The width of the railroad track can be ignored.How many square in the plot of land ACD?4.The letters A,B,Cand D all represent digits.If AB and AB ,what digit does D represent?
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英语翻译AMC82009年的题1.The five pieces shown at right can be arranged to form four of the five figures below .Which figure cannot be formed?2.A sequence of numbers starts with 1,2and3.The fourth number of the sequence is the sum of the prev
1.右方的五块图形可以排列成以下五个图形中的四个,请问哪个图形无法得到?
2.一个数列以1,2,3开头,数列的第四个数字是它前面三个数字之和:1+2+3=6.同样的,第四个数字之后的每一个数字都等于它前面三个数字之和.请问这个数列中的第八个数字是多少?
3.三角地ACD位于Aspen Road.Brown Road 和 一条铁路之间.主街道是东西走向,铁路是南北走向.图中的数字表示距离,单位为米.铁轨的宽度忽略不计,请问ACD占有多少平方?