下列物质的性质中,前者属于物理性质,后者属于化学性质的是( ) A.状态、熔点

题型:选择题

问题:

下列物质的性质中,前者属于物理性质,后者属于化学性质的是(  )

A.状态、熔点

B.硬度、密度

C.溶解性、可燃性

D.导电性、挥发性

考点:物理性质和化学性质的区别和应用
题型:选择题

急性脓胸的治疗原则是()

A.选用有效的抗生素

B.控制原发感染

C.全身支持治疗

D.彻底排净脓液,使肺早日复张

E.以上都是

题型:选择题

图是1912年和2000年世界某山地山顶冰雪覆盖范围变化图。读图回答问题。

小题1:1912年至2000年该山地冰雪覆盖范围变化,反映了

A.地壳活动加剧

B.日地距离缩短

C.黄赤交角变大

D.全球气候变暖小题2:图中反映的问题带来的影响是

A.海平面上升,海岸侵蚀加剧

B.冰川融水增多,全球水量增加

C.海洋面积增大,海岸线长度增加

D.热量消耗增多,全球温度下降

题型:选择题
一本书80页,小名第一天看了
1
5
,第二天应从______页看起.
题型:选择题

阅读下列材料:

材料一:自强运动是晚清政府在内忧外患交困的危急形势下的一个自救运动。由于在对内对外战争中对西方的坚船利炮的威力大开眼界,对来自西洋的“数千年来未有之强敌”(李鸿章语)开始有所认识,这样才能转而主张缓和与西方的紧张关系,并引进西方军事技术,以求“御侮自强”之术。——罗荣渠《现代化新论》

材料二:革命成功后,伤害的报纸不无戏谑地罗列了革命前后的变化:“共和政体成,专制政体灭,中华民国成,清朝灭总统成,皇帝灭,新内阁成,旧内阁灭”。——张鸣《辛亥:摇晃的中国》

材料三:胡适说,北大是因为三个兔子而成名的,一是老兔子蔡元培;二是中兔子陈独秀,三是小兔子胡适本人(三人年有长幼,但都属兔)。——洪向华主编《复兴之路》

请回答:

(1)材料一所提到的“自强运动”是指什么历史事件?晚清政府寻求“御侮自强”之术的根本目的是什么?

___________________________________________________________________________________________

(2)材料二中“革命”发生在哪一年?根据材料二概括这场革命的历史意义?

___________________________________________________________________________________________

(3)根据所学知识推断,材料三中的“三个兔子”在北大因高举哪两面大旗而闻名?

___________________________________________________________________________________________

(4)以上三则材料都体现了中国近代社会的一个重要发展历程,请你为此历程做一个主题归纳。

___________________________________________________________________________________________

题型:选择题

阅读理解

     Why did the chicken cross the road? To get to the other side.

     Most people know this joke. But recently, some people have been much more worried about how the grizzly bear and mountain lion can cross the road.

     "Millions of animals die each year on U.S. roads," the Federal Highway Administration reports. In fact, only about 80 ocelots, an endangered wild cat, exist in the U. S. today. The main reason? Road kill.

     "Eco-passages" may help animals cross the road without being hit by cars. They are paths both over

and under roads. "These eco-passages can be extremely useful, so that wildlife can avoid road accidents," said Jodi Hilty of the Wildlife Protection Society.

      But do animals actually use the eco-passages? The answer is yes. Paul Beier of Northern Arizona

University found foot marks left by mountain lions on an eco-passage that went under a highway. This

showed that the lions used the passage.

     Builders of eco-passages try to make them look like a natural part of an area by planting trees on and

around them. Animals seem to be catching on. Animals as different as salamanders(火蜥蜴)and grizzly

bears are using the bridges and underpasses.

     The next time you visit a park or drive through an area with a lot of wildlife, look around. You might see an animals overpass!

1. The writer uses the example of "ocelots" to show that __________.

A. an increasing number of animals are killed in road accidents

B. the driving conditions have improved greatly

C. the measure for protecting wildlife fails to work

D. wild animals have become more dangerous

2. From the news story, we know an eco-passage is __________.

A. an underground path for cars

B. a fence built for the safety of the area

C. a pass for animals to cross the road

D. a bridge for animals to get over a river

3. When the writer says that animals seem "to be catching on", he means __________.

A. animals begin to realize the dangers on the road

B. animals begin to learn to use eco-passages

C. animals are crossing the road in groups

D. animals are becoming safer

4. The writer asks visitors and drivers to look around when traveling because __________.

A. wild animals may cause danger

B. wild animals may jam the road

C. they may kill the animals

D. they may see wild animals on eco-passages

5. This passage is written to __________.

A. protect the endangered animals

B. call on drivers to be careful when seeing animals on roads

C. introduce a new way to help protect animals

D. tell us the main reason for the killing of animals in the US

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