打造网格凉亭议事小平台，让居民“话有地方说、理有地方讲、苦有地方诉、事有人去做”。其次要自省，有针对性地思考自己的薄弱学科、知识点，并加强练习与记忆；
(1-1/2)+(1/2-1/3)+(1/3-1/4)+···+（1/2009-1/2010 To find the sum of the given series, we need to add all the terms together. (1 - 1/2) + (1/2 - 1/3) + (1/3 - 1/4) + ... + (1/2009 - 1/2010) We can simplify each term by finding the common denominator. 1 - 1/2 = 2/2 - 1/2 = 1/2 1/2 - 1/3 = 3/6 - 2/6 = 1/6 1/3 - 1/4 = 4/12 - 3/12 = 1/12 We can observe that each term follows this pattern - the denominator of the second fraction becomes the denominator of the first fraction in the next term. So, the series can be written as: 1/2 + 1/6 + 1/12 + ... + 1/2009 To find the sum of this series, we need to find the common denominator of all the fractions. The common denominator of 2, 6, 12, ..., 2009 will be the least common multiple (LCM) of these numbers. Calculating the LCM of these numbers is a bit lengthy. Instead, we can find the LCM of 2, 3, 4, ..., 2010, and then divide by the LCM of 2, 3, 4, ..., 2009. LCM(2, 3, 4, ..., 2010) / LCM(2, 3, 4, ..., 2009) = 2010 / 2 = 1005 So, the common denominator is 1005. To add the fractions, we need to express them with the common denominator: 1/2 = (1/2) * (1005/1005) = 1005/2010 1/6 = (1/6) * (1005/1005) = 167.5/2010 1/12 = (1/12) * (1005/1005) = 83.75/2010 Now we can add: 1005/2010 + 167.5/2010 + 83.75/2010 + ... + 1/2009 We can observe that the denominators of the fractions form an arithmetic sequence, and the numerators follow the same pattern. Using the formula for the sum of an arithmetic sequence: Sum = (first term + last term) * number of terms / 2 In this case, the first term is 1005/2010, the last term is 1/2009, and the number of terms is 2010. Sum = (1005/2010 + 1/2009) * 2010/2 Sum = (1005/2010 + 1/2009) * 1005 Sum = (1005 * 2009 + 1 * 2010) / 2 Sum = (2019955 + 2010) / 2 Sum = 2021965 / 2 Sum = 1010982.5 Therefore, the sum of the given series is 1010982.5.但《英雄》之后，商业电影如雨后春笋涌现，中国电影不可避免地沾染了金钱的铜臭味。最令观众惊喜的是韩金金在离婚后才发现自己不能生育。
"""有个朋友北京的新婚第一年,春节去她家需要给她红包吗？""" 红包是中国传统的一种礼金，通常在春节期间赠送给晚辈、亲友或员工等。根据习俗，新婚夫妇的第一年一般是由家人提供经济上的支持，因此通常不需要给新婚夫妇红包。然而，如果你和新婚朋友的关系较为亲密，或者你希望表达对他们的祝福和支持，那么给他们一个适当的红包可能是一种很好的方式。最佳的方式是与新婚朋友沟通，了解他们的意愿和期望，然后根据具体情况来决定是否给红包。去年用以承载被裁项目员工的PICO和沐瞳也已经自身难保。 未来，淡写网络科技将继续坚持以客户为中心的服务理念，不断提升自身的技术实力和服务水平。