中国人死亡原因排行” 看完你是否在颤抖！！！
自从小编接触到生物课题这一方面的工作后 对一些疾病也就慢慢有了一些关注 之前有看到过一篇帖子 在2017年的时候，中国人死亡原因排行中 中风、缺血性心脏病、慢性阻塞性肺病 肺癌、道路交通伤害、新生儿疾病 肝...
2008 AMC12B 真题及答案详细解析
2008 AMC 12 B 真题 答案详细解析请参考文末 Problem 1 A basketball player made baskets during a game. Each basket was worth either or points. How many different numbers could represent the total p...
2008 AMC12A 真题及答案详细解析
2008 AMC 12 A 真题 真题及解析 Problem 1 A bakery owner turns on his doughnut machine at . At the machine has completed one third of the day's job. At what time will the doughnut machine complete t...
2007 AMC12B 真题及答案详细解析
2007 AMC 12 B 真题 答案详细解析请参考文末 Problem 1 Isabella's house has 3 bedrooms. Each bedroom is 12 feet long, 10 feet wide, and 8 feet high. Isabella must paint the walls of all the bedrooms. ...
2007 AMC12A 真题及答案详细解析
2007 AMC 12 A 真题 答案详细解析请参考文末 Problem 1 One ticket to a show costs at full price. Susan buys 4 tickets using a coupon that gives her a 25% discount. Pam buys 5 tickets using a coupon t...
2006 AMC12B 真题及答案详细解析
2006 AMC 12 B 真题 答案详细解析请参考文末 Problem 1 What is ? Problem 2 For real numbers and , define . What is ? Problem 3 A football game was played between two teams, the Cougars and the Panthe...
2006 AMC12A 真题及答案详细解析
2006 AMC 12 A 真题 答案详细解析请参考文末 Problem 1 Sandwiches at Joe's Fast Food cost dollars each and sodas cost dollars each. How many dollars will it cost to purchase sandwiches and sodas? P...
2005 AMC12B 真题及答案详细解析
2005 AMC 12 B 真题 真题解析 Problem 1 A scout troop buys candy bars at a price of five for dollars. They sell all the candy bars at the price of two for dollar. What was their profit, in dollars...
2005 AMC12A 真题及答案详细解析
2005 AMC 12 A 真题 真题及解析 Problem 1 Two is of and of . What is ? Problem 2 The equations and have the same solution. What is the value of ? Problem 3 A rectangle with diagonal length is t...
