小升初英文奥数试题（二）.doc

小升初英文奥数试题（二） 1、Did you know? In the decimal number system (base 10) ten different digits, 0 to 9, are used to write all the numbers. In the binary number system (base 2) two different digits are used, i.e. 0 and 1. Which one of the following numbers is not a valid number in the octal number system (base 8)? A) 128 B) 127 C) 126 D) 125 E) 124 2、The number of diagonals that can be drawn in a regular polygon with twenty sides (icosagon) is_____. 3、If a and b are integers, 10?3=1,152?7=3, and then 379?6 is equal to_____. 4、Two numbers are in the ratio 2 : 3. When 4 is added to each number the ratio changes to 5 : 7.The sum of the two original numbers is____. 5、The greatest number of Mondays which can occur in 45 consecutive days is____ 6、Saul plays a video game in which he scores 4 for a hit and lost 6 for a miss. After 20 rounds his score is 30. The number of times he has missed is____. 7、Three girls A, B and C run in a 100 m race. When A finishes, B is 10 m behind A and when B finishes C is 20 m behind B. How far in metres was C from A when A finished?(Let’s assume all the athletes run at a constant speed) 8、The areas of the faces of a rectangulabox are 84 cm2 , 70 cm2and 30 cm2.The volume of the box in cm3 is____. 9、You have 3 weights: 1 kg, 3 kg and 9 kg as well as an equal arm balance, as shown. How many different weight objects can you weigh with these three? [Remember the weights may be placed on either side] 参考答案： 1、A 考察我们学过的简单的进制问题，显然8进制中没有8出现 2、170 找规律，公式为n×(n-3)÷2 3、1 定义新运算，就是求379÷6的余数。 4、40，16和24 5、7 6、5 7、28米，根据距离比求出速度比，三者的速度比为1：9/10：18/25 8、420 分解质因数 9、13种 招商引资工作方案10篇 招商引资工作方案 招商引资工作方案： **年是我县实施“开放兴县”战略的关键一年。为强力推进招商引资工作，在新一轮经济发展竞争中抢抓机遇、乘势而上，加快跨越发展，实现进位赶超，特制定本实施方案。 一、指导思想和工作思路 指导思想：紧紧围绕县委、县政府决策部署，紧扣“落实年、突破年”总要求，深入实施“生态立县、工贸强县、开放兴县”三大战略，解放思想，提升境界，持之以恒抓招商、优结构、搭平台、促发展，加快打造“现代产业发展集聚地、文化生态旅游新高地、绿色有机农业示范地”，全力谱写“生态**、活力**、幸福**”新篇章。 工作思路：实施中心项目带动战略，以“招商引资突破年”活动为总抓手，始终坚持大上项目、上大项目；以重点产业、重点区域、重要客商为主线，整合资源，创新方式，全力全速推动产业招商、专业招商、资本招商、资源招商，提升招商实效。