枪弹痕迹检验的作用有那些？

阅读理解。

     Skin-diving (潜泳) is a new sport today. This sport take you into a wonderful new world. It is like a visit

to the moon! When you are under water, it is easy for you to climb big rocks, because you are on longer heavy.

     Here, under water, everything is blue and green. During the day, there is plenty of light. When fish swims

nearby, you can catch them with your hands.

     When you have tanks (罐) of air on your back, you can stay in deep water for a long time. But you must

be careful when you dive in deep water.

     To catch fish is one of the most interesting parts of this sport. Besides, there are more uses for Skin-diving. You can clean ships without taking them out of the water. You can get many things from the deep sea.

     Now you can see that Skin-diving is both useful and interesting.

1. Skin-diving can take you to _________.

A. an exciting world

B. a new world

C. a beautiful world

D. an interesting and new world

2. This sport _________.

A. is like to travel on the moon

B. is like to play in water

C. is like to visit a new country

D. is like to climb a big rock

3. You can stay in deep water for a long time because _________.

A. you can swim

B. you can take tanks of air with you

C. you can bring something to eat

D. you can skin diving

4. Which of the following statements is NOT true?

A. Skin-diving is a new sport.

B. Skin-diving is like visiting the moon.

C. The only use of skin-diving is to have more fun.

D. Skin-diving is not only interesting but useful.

5. Skin-diving is a useful and interesting sport because _________.

A. you can catch fish with your hands

B. you can clean the ship in the water

C. you can get many things from the deep sea

D. all of the above

阅读下面语段，回答问题：

马克思主义认为． * * 的主体是社会的人，不是抽象的人。 * * 不可能是天赋的，而是社会历史地产生的。从其本质上讲，它反映了一定的社会关系。个人不可能离开他人和社会而生存这一事实，决定了 * * 有两种表现形式，个人 * * 和集体 * * 。个人 * * 的主体是个人，集体 * * 的主体是社会群体、民族和国家等。个人 * * 是集体 * * 的基础、集体 * * 是个人 * * 的保障。

这段话主要支持了这样一种论点，即（ ）

A． * * 的主体是社会的人。

B． * * 有两种表现形式，个人 * * 和集体 * * 。

C．个人 * * 是集体 * * 的基础，集体 * * 是个人 * * 的保障。

D． * * 是个 * * 利和集体权利的统一。

前一段时间，我国政府掀起了治安反“黑”、手机反“黄”等多项专项行动。2010年6月13日，公安部又部署全国“2010严打整治行动”。回答13—14题。

小题1:在“打黑扫黄”斗争中，广大人民群众纷纷通过检举、揭发和举报等方式，参与到专项行动。重庆市公安局“涉黑涉恶”犯罪举报中心接到群众举报线索就有25000多条。这反映了我国公民通过   渠道行使监督权。

A．信访举报制度

B．舆论监督制度

C．社情民意反映制度

D．人大代表联系群众制度小题2:在这些专项行动中，政府的权威得到了提升。区分有权威与无权威政府的根本标志是

A．政府是否维护了宪法和法律的尊严

B．政府有没有做到有令必行，有禁必止

C．政府能否做到廉洁、高效、团结合作

D．政府的管理和服务是否被人民自觉认可和接受

密封油压、氢压、内冷水压三者关系是：密封油压>氢压>内冷水压。

习 * * * * 指出：“实现中国梦必须（）。”

A、坚持中国道路

B、弘扬中国精神

C、传承民族文化

D、凝聚中国力量