什么是基因突变,基因突变有那几类?

题型:问答题 简答题

问题:

什么是基因突变,基因突变有那几类?

考点:生物学医学实验动物学医学实验动物学题库
题型:问答题 简答题
Monday morning is an important time at our school. All of the students go to the playground. We listen to music, and we   16  the national flag go up.
   Usually, one student gives a talk on Monday mornings. One Monday last year, a boy gave the talk. He was   17  and excited! When I saw him, I wanted to have a try, too.
   Can I really do it?
   Last week, our teacher said our class should give the talk. My teacher   18  me, “I know you want to have a try. Next Monday, you can give the talk. Go and write something down.   19  for it, I’m sure you’ll do well.”
“Thank you,” I answered. It was such a great   20  for me! When I got home, I was excited. I wrote two pages for the talk. I read them again and again. When I read, I asked my parents  21 . I wanted to make my teacher happy.
   Monday morning came. I began to feel   22 . When did I last give a talk to   23  many people? Never! This was my first time. Could I really   24  it ? Maybe I couldn’t finish the talk.
When I got to school, we all went out to playground. I  25 in front of everyone. I opened my mouth, but I couldn’t say anything.
“Take it easy,” I said to   26 . “Don’t be nervous. You can do it.”
Just then, I looked down at everyone. I saw about 1,000 eyes. They were all looking at me ! I couldn’t   27  stand up.
I looked at their eyes more carefully. Their eyes were saying, “You can do it! Don’t be afraid, just talk!”
I   28  a big breath. Then I began to talk. It wasn’t hard. It was easy.
I don’t know   29  I finished my talk. But I did it. I felt so good that day. I showed myself 30  everyone what I can do.
小题1:
A.watchB.seeC.noticeD.look at
小题2:
A.surprisingB.proudC.amazedD.careful
小题3:
A.toldB.asked forC.said toD.showed
小题4:
A.Look outB.Come onC.Take careD.Get ready
小题5:
A.chanceB.newsC.timeD.message
小题6:
A.to listen toB.to listenC.listen toD.listen
小题7:
A.excitedB.happyC.nervousD.surprised
小题8:
A.afterB.suchC.beforeD.so
小题9:
A.doB.speakC.talkD.take
小题10:
A.standB.stoodC.was standingD.have stood
小题11:
A.meB.my classC.myselfD.my parents
小题12:
A.be able toB.hardlyC.everD.even
小题13:
A.tookB.heldC.putD.left
小题14:
A.whenB.howC.whyD.whether
小题15:
A.soB.butC.toD.for
题型:问答题 简答题

2008年3月1日,我某公司向美商发盘,发盘中除列明各项交易条件外,还规定“PACKING IN SOUND BAGS”。2008年3月3日,美商复电称:“REFER TO YOUR OFFER FIRST ACCEPTANCE, PACKING IN NEW BAGS。”我方公司收到上述来电后,即着手备货。数日后,该商品国际市场价格猛跌,美商来电称:“我对包装条件做了变更,你未确认,合同并未成立。”而我方公司则坚持合同已经成立,于是双方为此发生争执。

根据《联合国国际货物销售合同公约》规定,如果你是仲裁员,应判()。

A.意大利商人胜诉

B.工程承包公司胜诉

C.在本案中,双方都有责任,各打50大板

D.在本案中,双方都有责任,意大利商人责任大些,工程承包公司责任小些

题型:问答题 简答题

深Ⅱ度烧伤的痛觉特征是()

A.痛觉迟钝

B.剧痛,感觉过敏

C.痛觉消失

D.红肿热痛,痛觉过敏

E.瘙痒

题型:问答题 简答题

2009年是新世纪以来我国经济发展最为困难的一年,而文化产业逆势而上,呈现着“繁花似锦”的繁荣景象。天津某校高三(1)班同学开展“感受文化软实力,推动文化大发展”的主题探究活动,搜集了下列材料。请你一起参与。

材料一 感受文化软实力

2009年,天津市政府以文化旅游业为龙头,以11个项目为载体,汲取了国内外先进的经验,变资源优势为产业优势,创建“特色文化名城”. 天津的文化产业快速发展,成为推动我市社会主义文化大发展大繁荣的重要引擎和经济发展新的增长点。天津文化产业增加值有望年均增长30%以上,到2011年底文化产业增加值占生产总值比重超过4%。

(1)请你根据上述材料,从物质生活和精神生活两个方面, 说明发展文化产业、提升文化软实力的意义。(8分)

材料二: 弘扬社会主义文化主旋律

学生调查发现:改革开放以来,青年一代意识形态呈现多元化,但是社会的主流意识、核心价值观占主体位置。国家观念和意识、公共利益和公民意识等先进的社会价值观,在青年群体的思想价值体系中根深蒂固,已经成为“80”和“90,'后这一代人的价值主体并影响着他们的社会行为.但少部分青少年很容易受社会文化潮流的襄挟,做出非理性,甚至破坏性的社会行为。因此,必须引起高度重视。

(2)运用生活与哲学的有关知识,谈谈你对上述材料的认识。(12分)

题型:问答题 简答题

下列有关我国反倾销、反补贴、保障措施三种贸易救济措施的比较,错误的是哪项 ( )

A.反倾销、反补贴、保障措施的实质要件都包括损害,但是损害的具体意义不同,前两者的损害包括“对建立国内产业造成实质阻碍”,而后者不包括

B.我国反倾销、反补贴的调查机关都是商务部,而保障措施的调查机关不是

C.临时反倾销措施、临时反补贴措施和临时保障措施的形式不同,前两者包括临时反倾销(或反补贴)税以及保证金、保函等担保;而临时保障措施仅包括提高关税

D.三者终裁后的措施不同,前两者是反倾销或反补贴税,而保障措施则包括提高关税、数量限制等

更多题库