题干

近代中国丧失领土主权开始于(    )

A:将尼布楚让与俄国

B:割香港岛给英国

C:割库页岛给俄国

D:割台湾给日本

上一题 下一题 0.0难度 选择题 更新时间:2016-11-03 02:46:48

答案(点此获取答案解析)

B

同类题1

根据短文内容,选择最佳答案。    Several days ago, I went to my aunt's home and saw my cousin who is studying English linguistics in a university. He showed me his learning materials.Here are two pages of them.
Nice
    Generally speaking, the word “nice” is quite an expression of praise. However, back in the late 12th century, if someone said you were “nice”, it was far from saying good words about you.
    Very long ago, “nice” was used to mean “foolish” and “stupid”. That sounds more like the kind of words that would start a fight, not put a smile on someone's face. Later on in the 13th century, 'nice” came to mean “shy and nervous”. During the 14th century, it even meant “being careful”. But finally in the 18th century, it changed to the kinder meaning we know today, and ever since then, people have been using it in a lovable way.
Sad
    All of us get sad from time to time. It's a usual part of life. A loved one passes away. We expect too much progress in an exam. Or the store is out of our favourite drink. These are all things that can make us sad.
    However, once upon a time, “sad” had a very different meaning. Back in the 14th century, it was the perfect word if you had eaten too much food at dinner.
    Through the years, the meaning of “sad” changed to “heavy” and then “tired”. Interestingly, when “sad” took on its present meaning, it was actually used instead of “unrot”, an old English word that was the opposite of “rot” that meant “cheerful” or “glad”.
    Now I know at some point in history, the meanings of some common words that we see every day meant something much different. The English language is developing all the time.

同类题3

阅读短文,完成各题

雾霾

    ①雾霾是雾和霾的统称。

    ②雾是大量悬浮在近地面空气中的微小水滴或冰晶导致水平能见度降低到1000米以内的天气现象。雾看起来呈乳白色或青白色。

    ③霾是空气中的灰尘、硫酸、硝酸、有机碳氢化合物等粒子使大气浑浊,并导致水平能见度小于10000米的现象。霾看起来呈黄色或橙灰色。

    ④雾和霾常常相伴出现。区别雾和霾,空气相对湿度是重要依据。一般相对湿度小于80%时的空气能见度恶化主要是霾造成的,人们习惯上称此时的天气为霾天;相对湿度大于90%时的空气能见度恶化主要是雾造成的,通常被称为雾天;相对湿度介于80%~90%之间时的空气能见度恶化是霾和雾的混合物共同造成的,一般被统称为雾霾天。

    ⑤在雾霾天气中,PM2.5是“罪魁祸首”。其主要来源有多个:一是道路扬尘和建筑施工扬尘;二是汽车尾气;三是工厂制造出的废气污染;四是冬季取暖时燃烧煤炭低空排放的污染物;五是生物质(如秸秆、木柴)的燃烧以及垃圾焚烧产生的烟尘。

    ⑥这些污染颗粒和细菌、病毒等一起附着在水滴上,危害着人的健康。1952年12月,英国伦敦大雾一周不散,烟尘废气在低空聚积,其间有4700人因呼吸道疾病死于非命,雾散后,还有8000多人因雾死亡。“雾都劫难”震惊世界,人们将伦敦雾灾列为20世纪世界十大自然灾害之一。

    ⑦雾霾天应减少开窗,减少外出。但最根本的还是要从源头上采取“减排消尘”的措施。此法既能减少由温室气体引发的空中水汽,又能减少空气中的凝结核,从而达到控制雾霾频发现象的目的。这方面伦敦做出了榜样:1956年英国颁布了“清洁空气法案”,在“减排消尘”上大做文章,如今已见成效,原来每年有几十个雾霾天,现已降至5天,世界著名的“雾都”已名不副实。