施工现场木工作业处和半成品加工区为二级动火区域。

阅读理解。

     There are 47 different kinds of kangaroos(袋鼠). The smallest are about a quarter of a meter long;

the biggest are taller than a man.

     Kangaroos have very long strong back legs. These are used for jumping. They also have long strong

tails (尾巴) used for resting on. Kangaroos' front legs are much shorter, and are almost like arms.

Kangaroos' heads are quite small, but their ears are quite large.

     Mother kangaroos have a pocket at the front. They have one baby each year. When it is born, the

baby kangaroo goes straight into its mother's pocket. The baby kangaroos stay there for six months.

     The biggest kangaroos stand more than 2 meters tall, and their legs are so strong that they can jump

more than 9 meters. They are very fast, and can travel at more than 50 kilometers an hour. They are very

strong, but only eat fruit, leaves and grass.

1. How many different kinds of kangaroos are there?

A. seven

B. seventy-four

C. fourty-seven

D. forty-seven

2. How large is a big kangaroo?

A. Smaller than a man

B. Bigger than a man

C. The same size as a man

D. A quarter of a meter long.

3. Does each kangaroo have a pocket?

A. Yes, it does.  

B. No, it does.

C. No, it doesn't.

D. It doesn't tell us.

4. How long does a baby kangaroo stay in its mother's pocket?

A. one month    

B. three months  

C. six months        

D. five months

5. How far can kangaroos jump?

A. More than 2 meters.    

B. More than 9 meters.

C. Less than 2 meters.    

D. Less than 9 meters.

UNIX操作系统区别于Windows98的主要特点是 ( )

A．具有多用户分时功能

B．提供图形用户界面

C．文件系统采用多级目录结构

D．提供字符用户界面

有关呼吸系统体征，下列描述正确的是（）

A.深麻醉时分钟通气量显著降低

B.乙醚麻醉第四期出现呼吸麻痹

C.呛咳和支气管痉挛常为麻醉过浅的表现

D.呼吸系统体征受肌松剂的影响

E.以上均是

感官判断液化效果：取样放于烧杯中观察，液化效果好的醪液在取样后能很快澄清，上层呈水样清液，不发白、发粘。

电气设备停电后，即使是事故停电，在（）以前，不得触及设备或进入遮栏，以防突然来电。

A.未断开断路器

B.未做好安全措施

C.未拉开有关隔离开关和做好安全措施