试题与答案

如图所示,两个底面积大小分别为10厘米2和8厘米2的薄壁圆柱形容器A和B放置在水

题型:计算题

题目:

如图所示,两个底面积大小分别为10厘米2和8厘米2的薄壁圆柱形容器A和B放置在水平桌面上,已知A容器内部液体甲对容器底部产生的压强为3136帕,B容器内部盛的液体乙是水,且两容器中的液体液面高度均为0.4米。

(1)求甲液体的密度ρ甲。

(2)求乙液体(水)对B容器底部的压力F

(3)若再从A、B两容器内同时抽出体积(△V)相等的液体后,甲乙两种液体对容器底部的压强分别为p′和p′,请通过计算比较它们的大小关系及其对应的△V的取值范围。

答案:

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说明:155—170题,每段话中都有若干个空儿(空儿中标有题目序号)。请根据上下文的意思在答卷上的每一个空格中填写一个恰当的汉字。
你利用花,花也利用你。
我们为何给人送花 赠人 (155) 花可表达抚慰之情或柔情蜜意,也可用于恭喜庆贺或请求宽恕。我们天生就知道送花有一种强大的心理效应,然而在接受鲜花的心理效应方面还没有进行过多少科学研究,尽管花卉已经形成了一个规模可 (156) 的国际产业。
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题型:阅读理解

根据短文内容,选择最佳选项。

                                                    

       The Eiffel Tower is an iron tower built on the Champ de Mars beside the River Seine in Paris. It's a

famous building in the world. The tower is the second-highest structure in France. It is the tallest structure

in Paris and among the most recognized (公认的) symbols of France. It was designed and built by the

French civil engineer Alexander- Gustavo Eiffel for the Paris World's Fair of 1889. Named after its

designer, engineer Alexander- Gustavo Eiffel. The tower stands 300 m (986 ft) high, which is about 75

stories. It is made of iron and it is about 700 tons in weight. There're 1665 steps to the top. It took 300

workers 2 years to complete it. It was finished in 1889. it is a premier(首要的) tourist destination, with

over 5.5 million visitors per year. Nobody will miss the chance to visit it when he arrives in Paris.

1. From the passage, we learn that ________.

A. The Eiffel Tower is the tallest structure in the world.

B. The Eiffel Tower is the most recognized symbols of France.

C. The Eiffel Tower was designed and built by an actor.

2. The Eiffel Tower was built for _________.

A. the Paris World's Fair of 1889.

B. celebrating the National Day.

C. a President's birthday.

3. According to the passage, the workers started to build the Eiffel Tower in ________.

A. 1887  

B. 1889

C. 1891

4. The Eiffel Tower named after      ______

A. its designer, engineer Alexander- Gustavo Eiffel

B. a President's name.

C. a national hero's name

5. What's the means of the sentence "Nobody will miss the chance to visit it when he arrives in Paris."

A. Most people will visit the Eiffel Tower when they arrive in Paris.

B. Anybody will visit the Eiffel Tower when they arrive in Paris.

C. If they have chances to visit the Eiffel Tower nobody will miss it.

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