细胞全能性

题型:名词解释

问题:

细胞全能性

考点:高职试题科学与技术中央广播电视大学2008
题型:名词解释

阅读理解。

     Mum gives little Tom ten yuan. Then little Tom goes shopping. He gets on the bus and sits down next to

  an old woman. Then he sees the old woman's handbag is open. There is ten yuan in it. He quickly looks

 into his pocket. The money isn't here now! Little Tom is sure that the old woman is a thief (小偷). He

 decides (决定) to take back the money from the old woman's bag. He carefully puts his hand into the old

  woman's bag, takes the money and says nothing. Suddenly(突然地) the old woman shouts, 'Where is my

  monye? I can't find it. There is a thief on the bus."Little Tom feels strange (奇怪的). Then he sees ten

  yuan under his seat. Little Tom is thinking a question now, "'Am I a thief?"

1. _____ is sitting beside little Tom.

    A. A young woman    

    B. An old woman        

    C. A young man      

    D. An old man

2. Little Tom sees _____ in the old woman's handbag.

    A. a wallet            

    B. a packet            

    C. ten yuan          

    D. ten dollars

3. Little Tom is sure that the old woman is a ______.

    A. thief              

    B. teacher        

    C. rich woman    

    D. poor woman

4. Little Tom sees ______ ten yuan under his seat.

    A. his own        

    B. the old woman's      

    C. the thief's      

    D. the driver's

5. Which of the following is right?

    A. Little Tom is a bad boy.        

    B. Little Tom often steals (偷) things.

    C. Mum gives little Tom twenty yuan.

    D. Little Tom makes a mistake (错误 )      

题型:名词解释

如图所示,在“研究凸透镜成像规律”的实验中,光屏上出现了清晰的烛焰像。利用这一成像原理可以制成___________(选填“照相机”、“幻灯机”、“放大镜”);若已知蜡烛到凸透镜的距离为12cm,由此可以判断凸透镜的焦距范围是____________。

题型:名词解释

组成可水解鞣质的基本单元是()

A.黄烷-3-醇类

B.没食子酸

C.异戊二烯

D.C6-C3单位

E.2-苯基色原酮

题型:名词解释

使用质量评价结果时,应考虑哪些因素()

A、收集评价结果的规程,如工具、手工等

B、评价结果的来源,如供方报告、需方报告等

C、结果数据的确认,如供方自查、第三方检查等

D、评价指标体系

题型:名词解释

用一电阻测量仪对某一电阻器进行连续25次测量,得标准差为0.15Ω。测量仪的校准证书给出其不确定度为0.02Ω(置信水平为95%)。则

合成不确定度为()

A.0.020Ω

B.0.032Ω

C.0.015Ω

D.0.018Ω

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