题干

小明把一瓶酸奶、咸鱼放在冰箱里,过了一晚,他闻到从冰箱拿出的酸奶具有一股咸鱼味,此现象能说明 (    )

A:酸奶瓶对咸鱼分子有引力

B:咸鱼的温度高于酸奶瓶的

C:咸鱼的内能大于酸奶瓶的

D:分子在不断地运动

上一题 下一题 0.0难度 选择题 更新时间:2017-07-17 11:49:54

答案(点此获取答案解析)

D

同类题2

任务型阅读

    A new report says plastics are responsible for $13 billion in damage to the oceans and the undersea environment. The findings were announced recently at a United Nations conference. ____.

    Plastic thrown away carelessly makes its way into rivers and other waterways.____ After a while, it collects in the sea. And plastic never goes away. Plastic is not biodegradable—destroyed by bacteria or natural processes. Instead, it just breaks up into smaller pieces over time. The oceans contain a lot of chemicals and other pollutants(污染物). ____. That means harmful material may get into our food supply.

    ____. Human beings cause pollution and they can take steps to stop it. They can use fewer single use product containers and throw plastics away correctly. Plastic recycling programs also works—where old bottles and other plastics are collected, broken down and used to make new products. We could reuse bottles in our households many times if we wish to, rather than end it after the first use. We could, when we get rid of that plastic, recycle it and reuse it, which replaces the need for raw materials.

    The report also calls on companies to improve methods for using plastics. ____. And it calls for information about the way plastic is thrown out or removed from use. By putting a new value on plastic, industry has a special reason to clean up the environment. But all of the companies must join to deal with the problem.

A. Then, fish may eat the plastics.

B. But people can make a big difference.

C. Plastics should be gathered together and reused.

D. It is convenient to use plastic bags in everyday life.

E. It asks for them to better measure and control plastic use.

F. The plastic eventually reaches coastal areas and ocean waters.

G. The report tells about harm to sea life and what might be done to improve the situation.

同类题3

阅读周二中的《阅读是一种定力》一文,完成后面的题。
      ①调查数据显示,国人年均读书量很少,较多的说法只有6本,而欧美国家达16本,北欧国家达到24本。这些数据未必精确,却也从一个侧面反映国人静不下心来读书的尴尬现实。
      ②一位外国管理学者在其近著中说,在中国旅行时发现,城市遍街都是按摩店,而书店却寥寥无几,中国人均每天读书不足15分钟,人均阅读量少得可怜。他的判断未免失之武断,也未必准确,但他观察到的现象、所思考的问题却令我们警醒。
      ③“男儿欲遂平生志,六经勤向窗前读。”一千多年前,宋真宗就写下这样的劝学诗句。今天,到底是什么让我们静不下心来了呢?忙,没时间,是很多人找到的原因。然而,鲁迅先生早就断了此类借口的后路:时间就像海绵里的水,只要愿挤,总还是有的。真正的原因恐怕在于,在快节奏、高压力、紧张而喧嚣的社会生活中,人们失去了一种定力。
      ④有人在飞机上发现一个现象,当时机舱已熄灯,他吃惊地发现,不睡觉玩iPad的,基本上都是中国人,而且他们基本上都是在打游戏或看电影,没见有人读书。而对于很多7海洋,这也想了解、那也想知道,顶多有些碎片化的浅阅读,在信息的洋流里心灵变得浮躁而飘零。
      ⑤说到底,越是面临生活的快节奏,越是要有超强的定力。有定力,才能让我们慢下来、静下心来观察与思考。那么,这定力从哪里来?来源于阅读本身。不少人有这样的阅读经历:偶一日拿起一本书来,竟然一读就欲罢不能,超然物外沉浸书中,数小时流逝而不觉。而那一度浮躁的心气竟然也沉静下来,有一种难得的静谧,更仿佛有一种沁人心脾的馨香在缭绕。这便是阅读的力量。
      ⑥其实,任何时代都有其快、变、闹等特征,关键就是能不能闹中取静、忙里偷闲地读点东西。古人欧阳修读书,即有枕上、马上、厕上“三上法”之谓。***同志在延安时则说过,“如果再过10年我就死了,那么我就一定要学习9年零359天”。懂得了阅读的力量,也就会把阅读作为提升素养的途径,更作为涵养定力的手段。有了这样的认知,即使舟车劳顿、戎马倥偬,其奈阅读何?
      ⑦在这个快速行进与选择的时代,很多人正在悄然改变与重塑,一个新的气象正在出现。各种电子书已经开始进驻手机桌面,越来越多的人把花在手机上的时间,开始从网络浏览、微博刷屏转向了桌面上的电子书库。当人们从快速流变的新媒体上重拾深阅读,进而自觉地下载适合自己阅读的电子书籍,阅读将在新媒体上获得新生,它所改变的将不仅是人们的素养,还有躁动不安的心灵。