多肉植物能晒太阳吗晒伤怎么办-专业的有问必答平台

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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.

童强强调,碳水化合物是人体维持生命活动所需能量的主要来源,一些人因为减肥等原因长期不吃碳水化合物,导致机体代谢紊乱,免疫器官、免疫细胞及免疫分子等的代谢同样会受到影响。在做外墙保温层方案时,他遇到了一个难题,要么保温层厚度不满足设计要求,要么成本太高,迟迟找不到理想的方案。

中秋假期7340.9万人次出游,本地游成主基调,哪些行业成为了新宠? 根据中秋假期出游人次增长情况,以下行业成为了新宠: 1. 旅游景区:由于本地游成为主基调,各地旅游景区受到更多游客的关注和青睐。景区内的酒店、餐饮、休闲娱乐等相关行业也得到了发展。 2. 酒店和住宿业:随着出游人次增加,需求量大大提升。因此,酒店和住宿业成为受益行业之一。各类酒店、客栈以及民宿等形式的住宿业务得到了更多的订单。 3. 餐饮业:人们在旅行期间一般会选择外出就餐,所以餐饮业也是新兴行业之一。各类餐厅、小吃摊、美食街等都迎来了大批顾客。 4. 交通运输业:因为出游人次增多,交通需求也大幅增加。航空、火车、汽车等交通运输业受到了明显的提升,各类票务预订和交通线路也得到了更多的关注。 5. 旅游服务业:随着本地游的兴起,旅游服务行业如导游、旅行社、旅游设计定制等也得到了更多的发展机会。这些服务业的需求在中秋假期期间大幅增长。 总的来说,中秋假期中的本地游成为主要出游方式,相关行业如旅游景区、酒店和住宿业、餐饮业、交通运输业、旅游服务业等都成为了新的热门行业。

工区要求安保人员每日一巡查。让我们从辣目洋子的穿衣经验中汲取灵感,勇敢地尝试不同的搭配方式,发掘我们自己的独特魅力吧!

马拉多纳是迄今为止被公认的两大球王之一,那么另一个球王是谁呢? 另一个被公认为球王的人是巴西球员贝利。

建立线上“宣讲超市”,依托新时代文明实践中心将宣讲内容梳理、细化、分类“上架”,群众点单、宣讲员接单,在“一点一接”之间完成宣讲供需。对于叶女士的行为,也有业主表示可以理解,还有的业主表示并不关心。