题干

下列有关生物的进化和生物的多样性的有关说法,不正确的是(  )

A:生物进化的直接证据是化石证据

B:达尔文生物进化学说的核心内容是自然选择

C:保护生物多样性的最有效的措施是建立自然保护区

D:生态系统的多样性仅指生物种类的多样性

上一题 下一题 0.0难度 选择题 更新时间:2017-04-18 02:23:38

答案(点此获取答案解析)

D

同类题2

阅读理解

    China's Singles Day, which falls on Nov. 11 every year, has far surpassed its U. S. counterparts of Black Friday and Cyber Monday—combined Last year, Americans spent a record $ 12.8 billion online between Thanksgiving Day and Cyber Monday. It's impressive until you compare it to the $ 17.6 billion in sales made by Chinese consumers in a single 24-hour period during 2016's Singles Day.

    Singles Day is known as “Bare Sticks Day” or “Bare Branches Day” in Chinese-because the date “11/11” looks like bare branches and “one” is the loneliest number. Singles Day began in the early 1990s in the dorm rooms of Nanjing University when a group of single friends were sorry about the lack of significant others and decided to mark the day by organizing activities as a group of singles and reducing their loneliness by buying themselves a gift.

    Then in 2009, sensing a break between the sales period of China's National Day on Oct. 1 and Chinese New Year in late January or early February, Alibaba's Jack Ma saw an opening: sell to comfort lonely hearts.

    The first year did only $7.5 million in sales, but just 8 years later, shoppers spent $ 25.3 billion, or 168.2 billion yuan, this year—a 40 percent jump from last year's $ 17.6 billion. For comparison, Black Friday and Cyber Monday in the U. S. only netted $ 6.79 billion in 2016. Amazon doesn't release sales figures for July's Prime Day, but it's pretty safe to believe the not-quite-national-holiday doesn't come close to $ 25 billion.

    “More than $ 25 billion in one day is not just a sales figure,” Alibaba Group CEO Daniel Zhang said in a statement. “It represents the desire for quality consumption of the Chinese consumer, and it reflects how merchants and consumers alike have now fully accepted the combination of online and offline sales.”

同类题4

阅读下面的文字,完成下面小题。

    清顺治八年(1651年),顺治在祭告黄帝文中曰:“自古帝王,受天明命,继道统而新治统。”刚刚入主中原的满族皇帝这句话看似简单,实则内涵非常丰富,可以说是探析中国现代转型之艰的一个极其重要的视角。

    何谓“道统”与“治统”?简单来说,前者主要指尧、舜、禹、汤、文、武、周公、孔、孟这些圣人的思想传统,即儒家思想传统。后者主要指体现为一定继承性的政治统治的传统。

    作为“道统”的儒家思想传统,虽在历史上也曾遭到其他思想挑战,但几千年里基本上“天下所极重”。儒家思想自有真理的闪光点和恒久的魅力,但历代帝王看重的是它所宣扬的仁义道德等对封建专制统治合法性的诠释,倚重的是它所宣扬的“君君、臣臣、父父、子子”对封建专制统治秩序的巩固,从而形成“天下以道而治”的共识。因此,历代帝王都把“继道统”作为巩固自己统治的重中之重。不过,以“继道统”为基础的“新治统”,其“新”是极其有限的。一个新王朝替代前朝,不会去否定其封建专制,而是认为前朝统治失德离道,所以天命转移。不去否定封建专制的“新治统”,只能表现为对治理之术细枝末节的修修补补,实践中则是封建专制统治在总体上不断强化。

    中国历史上,“道统”与“治统”根深蒂固,强大到把入主中原的少数民族政权纳入自己的发展轨道,强大到在西方列强不断的侵略下始终没有瓦解。从这个意义上说,“道统”与“治统”对于保持中华文明的连续性和统一性有着积极作用。但是,这种深厚的积淀也使中国天然地缺乏走出传统社会的思想资源和体制基础。当中国要向现代社会转型时,“道统”与“治统”就成为沉重的历史包袱。

    世界上许多国家经历过从传统社会向现代社会转型的艰难历程,但像中国这样历经百年、遍尝艰辛的却很少。譬如,日本在19世纪中叶与中国境遇相似,但它通过明治维新顺利地向现代转型,不应忽略的一点就是它没有中国这样的“道统”与“治统”。历史底蕴的缺乏在转型时反而成为优势,使其更容易放弃“原来的自己”。而中国在鸦片战争之后,有识之士也希望通过改良挽救民族危亡,但根深蒂固的“道统”与“治统”却阻碍中国的现代转型。近代I历史上,早期改良派人物王韬说:“器则取诸西国,道则备自当躬。盖万事而不变者,孔子之道也,儒道也,亦人道也。”这是当时的代表性思潮。此后的“中体西用”思潮和洋务运动,与其说是向现代转型的一种努力,不如说是对“道统”与“治统”的竭力维护。再往后,即使辛亥革命敲响了封建专制的丧钟,依然有袁世凯称帝的闹剧。只有在***成立后,才真正终结维护封建专制的“道统”与“治统”,中国也由此开始真正向现代转型,向民族伟大复兴的目标迈进。

(摘编自叶帆《道统、治统与现代转型之艰》)