某装饰工程公司承接北京市某街道的一栋12层，全现浇混凝土结构的办公楼装饰工程，现安A谋安全员负责该工地的消防安全管理，并做了如下工作：

(1)施工现场设置了消防车道；

(2)设置了室外消防给水系统、在建工程室内消防竖管和消防栓系统，并配备了足够的消防器材；

(3)电焊工从事电气设备安装和气焊作业时均要求按有关规定进行操作；

(4)因施工需要搭设了临时建筑，为了降低成本，就地取材，用木板搭设工人宿舍；

(5)施工材料的存放、保管符合防火安全要求；

(6)现场有明显的防火宣传标志，施工现场严禁吸烟；

(7)使用明火按规定执行，专人看管，人走火灭；

(8)该工程的消防安全管理工作比较到位，在施工全过程中，未发生一起火灾。

【问题】

1.施工工地是否要设消防车？设置消防车道有什么具体要求？

2.简述该工地临时室外消防给水干管、在建工程室内消防竖管的直径要求，以及消火栓接口楼层分布的要求。

3.电、气焊切割作业前，需办理什么证件？现场需做哪些消防准备？

4.对于装饰装修工程，施工现场对易燃易爆材料有哪些安全管理要求？

Imagine going to sleep in October and waking up in May! Well, marmots and ground squirrels stay warm by sleeping all winter. All this time, they do not wake up once. This special kind of sleep is called hibernation. During this sleep, the heart slows down, and the animal breathes more slowly, it doesn’t move around, so it uses less energy.
Animals like the marmot and the ground squirrel inhabit the coldest parts of the world. They need special talents to survive in these frigid places. Their furry coats keep them snug when the temperature falls below zero. It often gets this cold in the Arctic, a land that is just below the North Pole.
Before the long winter, some animals eat and eat. After a while, they grow very fat. When the winter comes, they live on the fat saved up in their bodies. Layers of fat keep an animal warm.
Arctic animals also have other ways to beat the cold. Rabbits in the Arctic, for example, have very small ears. Small ears keep heat in, while big ears let it out. Small things usually keep heat in. Have you ever slept in a room that is very small, and noticed how hot it can get.’
It rarely gets warm in the Arctic. But although summer seasons there are very short, the sun shines brightly. Plants seem to spring up before your eyes! Animals such as caribou look forward all year to summer, when they can eat fresh grass again. Every minute of sunshine is important to their lives.

To help the reader understand that small things keep heat in, the writer uses ______.

A．an example

B．a p argument

C．scientific facts

D．careful measurements