设$X~B\left(10,0.8\right)$，则D(2X+1)等于（　　）

改革，始终是***讲话中的高频词。他说，改革开放“是决定当代中国命运的关键一招”，“是决定当代中国命运的关键抉择”。

材料一：根据***同志在中央党的群团工作会议上的重要讲话精神，2016年11月，团中央和教育部联合印发了《中学共青团改革实施方案》，提出要坚持以保持和增强中学共青团政治性、先进性、群众性，尤其是全面提升先进性为主要目标，着力推进中学共青团组织创新和工作创新；要改革创新工作内容和方式方法，创新思想政治引领和价值引领，深化“与人生对话”“彩虹人生”“14岁集体生日”“18岁成人仪式”等活动内涵，构建分层分类一体化思想引领工作体系。

材料二：改革开放之初，我国实行家庭承包责任制，所有权归集体，承包经营权归农户，称为“两权分离”。近年来，随着工业化、城镇化深入推进，大量农业人口转移到城镇，农村土地流转规模不断扩大，土地承包权主体同经营权主体分离的现象越来越普遍。

为稳定农村土地承包关系，近年来，国家开展了农村土地确权登记颁证'向农民“确实权、颁铁证”02016年11月，中共中央、国务院发布《关于完善农村土地所有权承包权经营权分置办法的意见》o《意见》指出，现阶段深化农村土地制度改革，顺应农民保留土地承包权、流转土地经营权的意愿，将土地承包经营权分为承包权和经营权，实行三权分置并行，着力推进农业现代化。

这是继家庭联产承包责任制后农村改革又一重大制度创新，对今后一段时期农村土地制度改革将产生深远影响。

阅读下文，回答相关问题

                                                                                                                秋天的心
                                                                                                                 林清玄
        ①我喜欢《唐子西语录》中的两句诗：山僧不解数甲子，一叶落知天下秋。这是说山上的和尚不知道如何计算甲子日历，只知道观察自然，看到一片树叶落下就知道天下都已是秋天了。从前读贾岛的诗，有“秋风吹渭水，落叶满长安”之句，对秋天萧瑟的景象颇有感触，但说到气派悠闲，就不如“一叶落知天下秋”了。
        ②现代都市人正好相反，可以说是“落叶满天不知秋，世人只会数甲子”。对现代人而言，时间观念只剩下日历，有时日历犹不足以形容，而是只剩下钟表了。谁会去管是什么日子呢？三百多年前，当汉人到台湾来垦植移民的时候，发现台湾的平埔族山胞非但没有日历，甚至没有年岁，不能分辨四时，而是以山上的刺桐花开为一年，过着逍遥自在的生活。初到的汉人想当然地感慨其“文化”落后，逐渐同化了平埔族。到今天，平埔族快要成为历史名词，他们有了年岁，知道四时，可是平埔族后裔有很多已经不知道什么是刺桐花了。
        ③对岁月的感知变化由立体到平面可以如此迅速，怎不让人兴叹？以现代人为例，在农业社会还深刻知道天气、岁时、植物、种作等等变化是和人密切结合的。但是，商业形态改变了我们，春天是朝九晚五，冬天也是朝九晚五；晴天和雨天已经没有任何差别了。这虽使人离开了“看天吃饭”的阴影，却也多少让人失去了感时忧国的情怀和胸怀天下的襟抱了。
        ④记得住在乡下的时候，大厅墙壁上总挂着一册农民历，大人要办事，大至播种耕耘、搬家嫁娶，小至安床沐浴、立券交易都会去看农民历。因此到了年尾，一本农民历差不多翻烂了，使我从小对农民历书就有一种特别亲切的感情。一直到现在，我还保持着看农民历的习惯，觉得读农民历是快乐的事。就看秋天吧，从立秋、处暑、白露到秋分、寒露、霜降，都是美极了。那清晨田野中白色的露珠，黄昏林园里清黄的落叶，不都是在说秋天吗？所以，虽然时光不再，我们都不应该失去农民那种在自然中安身立命的心情。
        ⑤城市不是没有秋天，如果我们静下心来就会知道，本来从东南方吹来的风，现在转到北方了；早晚气候的寒凉，就如同北地里的霜降；早晨的旭日与黄昏的彩霞，都与春天时大有不同了。变化最大的是天空和云彩，在夏日明亮的天空，渐渐地加深蓝色的调子，云更高、更白，飘动的时候仿佛带着轻微的风。每天我走到阳台抬头看天空，知道这是真正的秋天，是童年田园记忆中的那个秋天，是平埔族刺桐花开的那个秋天，也是唐朝山僧在山上见到落叶的同一个秋天。
        ⑥若能感知天下，能与落叶飞花同呼吸，能保有在自然中谦卑的心情，就是住在最热闹的城市，秋天也不会远去；如果眼里只有手表、金钱、工作，即使在路上被落叶击中，也见不到秋天的美。
        ⑦秋天的美多少带点潇湘之意，就像宋人吴文英写的词“何处合成愁，离人心上秋”，一般人认为秋天的心情会有些愁恼肃杀。其实，秋天是禾熟的季节，何尝没有清朗圆满的启示呢？
        ⑧我也喜欢韦应物一首秋天的诗：今朝郡斋冷，忽念山中客。涧底束荆薪，归来煮白石。欲持一瓢酒，远慰风雨夕。落叶满空山，何处寻行迹？
        ⑨在这风云滔滔的人世，就是秋天如此美丽清明的季节，要在空山的落叶中寻找朋友的足迹是多么困难!但是，即使在红砖道上，淹没在人潮车流之中，要找自己的足迹，更是艰辛呀!

    Beauty has always been regarded as something praiseworthy. Almost everyone thinks attractive people are happier and healthier, have better marriages and have more respectable jobs. Personal advisors give them better advice for finding jobs. Even judges are softer on attractive defendants. But in the executive(主管) circle, beauty can become a liability.

    While attractiveness is a positive factor for a man on his way up the executive ladder, it is harmful to a woman.

    Handsome male executives were considered as having more honesty than plainer men; effort and ability were thought to lead to their success.

    Attractive female executives were considered to have less honesty than unattractive ones; their success was connected not with ability but with factors such as luck.

    All unattractive women executives were thought to have more honesty and to be more capable than the attractive female executives. Interestingly, though, the rise of the unattractive overnight success was connected more to personal relationships and less to ability than that of the attractive overnight success.

    Why are attractive women not thought to be able? An attractive woman is considered to be more feminine and an attractive man more manly than the less attractive ones. Thus, an attractive woman has an advantage in traditionally female jobs, but an attractive woman in a traditionally manly position appears to lack the "manly" qualities required.

    This is true even in politics. "When the only clue is how he or she looks, people treat men and women differently," says Anne Bowman, who recently published a study on the effects of attractiveness on political candidates. She asked 125 undergraduate students to rank two groups of photographs, one of men and one of women, in order of attractiveness. Then the students were told the photographs were of candidates for political offices. They were asked to rank them again, in the order they would vote for them.

    The results showed that attractive males completely defeated unattractive men, but the women who had ranked most attractive unchangeably received the fewest votes.