在水泵吸水时,应保证室外管网的水压不低于( )MPa。 A.0.01 B.0.04

题型:多项选择题

问题:

在水泵吸水时,应保证室外管网的水压不低于( )MPa。

A.0.01

B.0.04

C.0.1

D.0.4

考点:造价工程师建设工程技术与计量(安装)建设工程技术与计量(安装工程部分)
题型:多项选择题

20世纪60年代,苏联发射了第一艘载人宇宙飞船,宇航员叫加加林。当时挑选第一个上太空的人选时,有这么一个插曲:几十名宇航员去参观他们要乘坐的飞船,进舱门的时候,只有加加林一个人把鞋脱下来了。这一个动作,让主设计师非常感动。他想:只有把这飞船交给一个如此爱惜它的人,我才放心。在他的推荐下,加加林成了人类第一个飞上太空的宇航员。所以有人开玩笑说,成功从脱鞋开始。

阅读材料,结合所学知识回答以下问题:

(1)“成功从脱鞋开始”说明了什么道理?(2分)

(2)作为一名中学生,你觉得我们应该培养哪些好习惯?(8分)

题型:多项选择题

物长8cm,通过焦距为f的凸透镜在屏上得到10cm高的像,则物体应放在______.若要得到放大的虚像,物体应放在______.

题型:多项选择题

南昌市郊区某村,利用塑料大棚生产蔬菜,同时开办了养猪场,如下图所示。读图回答问题。

小题1:该村的农业地域类型是

A.种植业

B.畜牧业

C.混合农业

D.生态农业小题2:大棚中生产出来的蔬菜,质量略逊于自然状态下生长的蔬菜。原因是大棚中的环境与自然状态相比

A.光照太强

B.热量不足

C.日温差较小

D.年温差较小

题型:多项选择题

阅读理解。

     Paris is the capital city of the European nation of France. It is also one of the most beautiful and most

famous cities in the world.

     Paris is called the City of Light. It is also an international fashion centre. What women are wearing in

Paris will be worn by women all over the world. Paris is also a famous world centre of education. For

example, it is where the headquarters of UNESCO, the United Nations Educational, Scientific and Cultural

Organization.

     The Seine River divides the city into two parts. Thirty-two bridges cross this beautiful river. The oldest

and perhaps the most well-known is the Point Neuf, which was built in the sixteenth century. The Sorbonne,

a famous university, stands on the left bank (south side) of the river. The beautiful white church Sacre Coeur

lies on the top of the hill called Montmartre on the right bank (north side) of the Seine.

     There are many other famous places in Paris, such as the famous museum, the Louvre, as well as the

Notre Dame. However, the most famous building in this city is Eiffel Tower.

     Paris as well as the Cathedral of Notre Dame is named after a group of people called the Parisaii. They

built a small village on an island in the middle of the Seine River about two thousand years ago. This island,

called the He de la Cite, is where Notre Dame lies. Today around eight million people live in the Paris area.

1. Why is Paris regarded as a fashion centre in the world?

A. Because the clothes there are the most expensive in the world.

B. Because there is the largest collection of the clothes in Paris.

C. Because Paris has the most beautiful clothes in the world.

D. Because Paris plays a leading role in the fashion world.

2. The Point Neuf was built in _____.

A. the 1500s

B. the 1600s

C. the 1700s

D. the 1800s

3. From the passage we know Paris is named after _____.

A. a group of people

B. a famous river

C. a famous museum

D. a famous writer

4. We can conclude that Notre Dame is _____.

A. on the left bank of the Seine River

B. on the right bank of the Seine River

C. on neither bank of the Seine River

D. in Louvre

5. Paris is famous for the following EXCEPT _____.

A. fashion

B. some bridges

C. the Sorbonne

D. the Eiffel Tower

题型:多项选择题

在因特网中,IP数据报从源节点到目的节点可能需要经过多个网络和路由器。在整个传输过程中,IP数据报报头中的

A.源地址和目的地址都不会发生变化

B.源地址有可能发生变化而目的地址不会发生变化

C.源地址不会发生变化而目的地址有可能发生变化

D.源地址和目的地址都有可能发生变化

更多题库