数据备份的方法有（）。 A.全盘备份 B.增量备份 C.基本备份 D.离开主机备份

Uniforms, used for identifying people，are seen almost everywhere in the world. They are a part of everyday life. Let’s look at some of the reasons why people wear uniforms and the types of people that wear uniforms.

Many children have to wear a uniform at school. Boys and girls must wear the same coloured clothes and a school tie. There is often a school badge on the jacket or shirt. There are many reasons for having a school uniforms .Firstly, the uniforms shows that the children attend the same school . It is important for children to feel they belong to a school and that they identify with their school. Secondly, the uniform makes it easy for other people to tell which school the children go to . They know they must be on their best behaviour because people know which school they go to and the children are proud of their school. Thirdly, school uniforms are comfortable,smart clothing. Finally, it is cheaper for parents to buy one set of clothes for their child. Most parents cannot afford to buy lots of expensive, fashionable clothes for their children.

小题1:Are children the only people who wear uniform?

小题2:Why are children on their best behavior when they wear their school uniforms?

小题3:why do police officers wear uniforms?

小题4: can you describe a teenager’s “uniforms”?

小题5:what do teenagers’ clothes tell you about them ?

小题6:what do you want to tell people through the clothes you wear

涉及职业危害的生产经营单位的“三类人员”是指哪些人员？

面对西方殖民掠夺，通过自身不掘不挠的斗争，第一个获得独立的亚非拉国家是（   ）

A．印度

B．日本

C．中国

D．海地

抑制结核杆菌蛋白合成的药物是（）

A.异烟肼

B.利褔平

C.链霉素

D.乙胺丁醇

E.氨基水杨酸

《特种设备无损检测人员考核规则》规定，特种设备《检测人员证》的有效期为4年。