问题 多项选择题

某综合楼地上52层,地下3层,建筑高度231m,总建筑面积为193159.58m2。地下部分为车库和设备用房,地上各层用途为商场、酒店、办公用房等。每层建筑面积不大于4000m2。消防用水分别从二路市政管网各引一路DN300的进水管,并在综合楼四周环通,环网上设置室外消火栓系统。综合楼各层均设置室内消火栓给水系统、自动喷水灭火系统、变、配电室、柴油发电机房内设水喷雾灭火系统,室内消防给水系统为临高压给水系统并采用串联消防给水方式供水。在地下三层、地上十五层避难层、地上三十七层避难层分别设置消防泵房和中间消防水箱,在顶层设大于18m3高位消防水箱。通信机房采用七氟丙烷气体灭火系统。该建筑还设有正压送风系统,机械排烟灾自动报警系统,消防应急照明,消防疏散指示标志,灭火器,消防电梯等消防设施及器材。

水喷雾灭火系统由()等组成。

A.水雾喷头 

B.雨淋阀组 

C.闭式喷头 

D.管道 

E.过滤器

答案

参考答案:A, B, D, E

解析:水喷雾灭火系统由水雾喷头、雨淋阀、过滤器、供水管道等主要部件组成

阅读理解

Canada, the second largest country in the world, lies in the north of America. The population of Canada is about 29 million and the capital is Ottawa. The country covers about 9,980,000 square kilometers and six of the world’s 24 time areas (时区) as well.

There are two official languages spoken in Canada: French and English. Many people can speak both English and French. More than 60% of Canadians speak English as their language. About 25% of the Canadians speak French. In one province of Canada where French is the common language, the programmes on TV and radios as well as the teaching in schools are all in French. Today, Chinese has become the first inofficial(非官方的) language in Canada.

Canada’s climate is not as cold all year around as some may believe. In winter, temperatures fall below freezing point throughout most of Canada. In summer, the southern provinces often experience high levels of temperatures that can reach over 30℃ regularly. The weather in Canada is just like the weather in China. It is rather cold in the north while it is fairly warm in the south. Winters in the north last long with snow for half a year. As the cold northern climate, only one-fifth of the land is suitable for farming.

As it is known to all, Canada has one-third of the world’s supply of fresh water. It has many great lakes. There are five great lakes in the south. And there are many others, especially in the north. It is also rich in natural resources, such as coal, oil, natural gas of which Canadians make use to produce energy.

People of northern Canada are called Inuit (因纽特人), who came from Asia and settled in Canada about 4,000 years ago. They used to travel around from place to place with teams of dogs which pulled their baggage. Now, they seldom move. There are about 2,500 Inuit in all. The government has started a new school project in which Inuit teach their own young children. So it is hoped that the way of Inuit life will be kept alive for more centuries.

小题1:How many people are there living in Canada?

A.About 24 million.

B.About 29 million.

C.About 25 million.

D.About 9,980,000.小题2:Today, most Canadians speak _________ as their first language.

A.French

B.Chinese

C.English

D.Japanese小题3:Only ________ of the land is fit for farming because of the cold northern climate.

A.15%

B.20%

C.30%

D.50%小题4:Which statement about Inuit is NOT right?

A.They settled in Canada about 4,000 years ago.

B.Dogs could help them pull their baggage when they had to travel years ago.

C.They can teach their own young children according to the new school project.

D.They way of Inuit life may disappear in the future.小题5:From the passage we can know _________.

A.Canada lies in the south of America

B.Canada has many different kinds of natural resources.

C.the weather in Canada is so cold the whole year as some people think

D.the Canadians government pays little attention to Inuit’s education.

单项选择题 A1型题