急性出血性结膜炎

Everyone likes living in a clean and comfortable environment. If the envionment(环境) is bad, it will affect（影响）our bodies, and make us not feel well. Sometimes we may be terribly ill. At that time we don’t want to work, and we have to stay in bed and rest at home. So the envrionment is very important to us.

It’s germ that makes us ill. There are germs everywhere, They are very small and you can’t find them with your own eyes, but you can see them with a microscope（显微镜）. They are very small and there may be hundreds of them on a very small thing, Germs can always be found in the dirty water. When we look at dirty water under the microscope, we shall see them in it. Germs can also be found in air and dust（灰尘）. If you cut your finger, some of the dust from the floor may go into it, and you will have much pain in it. Sometimes the germs will go into all of your boby, and you will have pain everywhere.

To keep us healthy, we should try to our best to make our environment become cleaner and tidier. This needs us to act together.

小题1:The writer tell us that________.

A．we like working when we are ill

B．germs can’t live in the water.

C．we can’t feel ill if the environment is bad.

D．we feel well when the environment is good.小题2:Germs are________.

A．very small things that you can’t see with your eyes.

B．the things that don’t effect people.

C．the things that you can find with your eyes.

D．the things that are very big.小题3:Where can germs be found? They can be found_________.

A．on the small thing

B．in air and dust

C．only in dirty water

D．everywhere小题4:How will you feel if germs go into the finger that is cut?

A．I will feel nothing.

B．I won’t mind.

C．I will feel tense.

D．I will feel painful.小题5:From the passage we know that________

A．environment doesn’t affect our life.

B．we don’t need to improve our environment.

C．germs may make us ill.

D．if the environment is better, germs will be more.

根据《船舶载运危险货物安全监督管理规定》，载运危险货物的船舶在（）时应当按规定显示信号。

Ⅰ．航行；Ⅱ．停泊；Ⅲ．修船；Ⅳ．作业。

A．Ⅰ～Ⅳ

B．Ⅰ～Ⅲ

C．Ⅱ～Ⅳ

D．Ⅰ、Ⅱ、Ⅳ

阑尾炎时，阑尾穿孔是因为（）

A.管腔梗阻合并管壁坏死

B.淋巴集结坏死

C.血运障碍

D.细菌入侵

E.管壁肌肉收缩

开展设备风风险评估的的是什么？

点彩红细胞胞质中的颗粒为

A．残存变性的DNA
B．残存变性的RNA
C．残存变性的脂蛋白
D．核糖体
E．金属颗粒沉淀