资料分析：

   科学家曾预测，随着温室效应不断加剧，到本世纪末全球升温范围将在1.1﹣6.4度之间．更加令人震惊的是，从最新的温室气体排放增加速度来看，地球气候已经开始朝着6﹣7℃严酷升温发展，大大超出2℃的地球生态警戒线，几乎宣告了生态系统的死刑，世界处在毁灭性的气候混乱状态边缘．

  2014年联合国气候变化大会12月1日在利马开幕，会上指出：应对气候变化，世界各国需共同努力．中国政府高度重视气候变化问题，多年来的减排努力取得了重大成效．

  根据以上资料回答：

“开证明”是居委会服务群众的常见方式，由居委会日常开具的各类证明高达240余种。今后，为了进一步简化程序、方便群众，一些本不该由居委会来证明的“奇葩”证明将被取消。对这一变化认识正确的是（    ）

C

    Pliny the Elder (老普林尼) wrote the first encyclopaedia with the help of his nephew. This work was made up of 37 books and had many subjects such as anthropology(人类学) and painting. Through the following few centuries, encyclopaedias were connected to religion (宗教). The first Christian edition appeared in 560 AD, and the first Muslim volume came to light soon after.

    One of the longest encyclopaedias ever was produced in 1403 when The Yongle Encyclopaedia《永乐大典》appeared in China. It had 11,095 volumes. Most of the original work has been lost .through the centuries, and people can see less than 400 volumes today. The word "encyclopaedia" coming from Greek means "a general knowledge". It has been .in use for at least 500 years.

    In the 20th century, the Encyclopaedia Britannica became the most well known western work of this type. At the same time, topical encyclopaedias became the most popular, covering different topics. At the end of the century, many publishers began to publish them in digital formats such as Compact Discs (CDs) and Digital Versatile Discs (DVDs).

如图，温度计的示数是____ 　．我国第一个南极科学考察基地﹣﹣中国南极长城站的平均气温为﹣25℃，最低气温可达﹣88.3℃，依据图表提供的数据，在南极长城站测气温时应选用____ 温度计．

如图为物质的分类关系，①与②是并列关系，③包含在②中，若②是纯净物，则③不可能是（   ）