该图是“三个同等规模商业中心对周围顾客达成交易的概率的等值线分布图”,根据图中等

题型:选择题

问题:

该图是“三个同等规模商业中心对周围顾客达成交易的概率的等值线分布图”,根据图中等值线分析,下列说法正确的是(  )

A.Ⅰ商业中心对周围顾客的吸引力小于Ⅱ商业中心

B.位于丁地的顾客一定选择去Ⅲ商业中心购物

C.图中等值线的数值分别从三个商业中心向外递减,说明了同等级商业中心的服务范围

是相互排斥的

D.图中等值线出现相交,说明了同等级商业中心的服务范围是层层嵌套的

考点:国际贸易和国际金融城市地域结构和城市功能分区的区位、特征及影响因素中心地等级及服务功能
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种公猪的饲养管理技术包括哪些内容?

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用NA表示阿伏加德罗常数,下列说法正确的是[ ]

A.0.2 mol H2O2完全分解转移的电子数为0.4 NA

B.1molCl2与1mol Fe反应,转移的电子数为3NA

C.在标准状况下,Cl2和H2的混合气22.4L,光照后原子总数为2NA

D.在常温常压下,2.24 L SO2与O2混合气体中所含氧原子数为0.2 NA

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阅读理解。

     A university graduate described as a "respectable and intelligent" woman is seeking professional help

after being convicted of (证明有……罪) shoplifting for the second time in six months.

     Ana Luz, recently studying for her PhD, has been told she could end up behind bars unless she can

control the desire to steal from shops .

     Luz ,who lives with her partner in Fitzwilliam Road ,Cambridge ,admitted stealing clothes worth £

9.95 from John Lewis in Oxford Street ,London ,on March 9.

     Phillip Lemoyne ,prosecuting (起诉),said Luz selected some clothes from a display and took them to

the ladies' toilet in the store .When she came out again she was wearing one of the skirts she had selected ,having taken off the anti-theft security alarms (防盗警报装置).

She was stopped and caught after leaving the store without paying ,Mr Lemoyne said.

    He added that she was upset on her arrest and apologized for her actions.

    Luz,28, was said to have been convicted of shoplifting by Cambridge judges last October ,but Morag

Duff, defending ,said she had never been in trouble with the police before that .

    "She is ashamed and embarrassed but doesn't really have any explanation why she did this," Miss Duff

said. "She didn't intend to steal when she went into the store .She is at a loss to explain it. She is otherwise a very respectable and intelligent young lady .She went to her doctor and asked for advice because she

wants to know if there is anything in particular that caused her to do this."

   Judge David Azan fined Luz £ 50,  and warned : "You've got a criminal record .If you carry on like

this ,you will end up in prison ,which will ruin your bright future you may have."

   Luz achieved a degree in design at university in her native Spain ,went on to a famous university in

Berlin , Germany for her master's degree and is now studying for a PhD at Cambridge University ,UK.

1.What is Ana Luz's nationality?

A. American.      

B. British.      

C. Spanish.      

D. German.

2.What does the underlined sentence "She is at a loss to explain it" mean? 

A. In her opinion it was a loss to the clothes shops where she stole things .

B. She doesn't have any idea why she has the desire to steal from shops .

C. She thinks it is a loss for her to explain why she stole things from shops.

D. Personally she feels ashamed and embarrassed for her shoplifting actions.

3.Which of the following best explains the meaning of the word "shoplifting" used in the passage?

A . Carrying goods in a lift for a shop.        

B. Taking goods to the ladies' toilet .

C. Selecting some goods from a display.      

D. Taking goods from a shop without paying.

4. From the passage we can learn that          .

A. Ana Luz is already got her PhD at Cambridge University ,UK

B. Ana Luz is ashamed and embarrassed and knows why she often did so 

C. the university graduate will be put in prison if she steals in shops once more 

D. Phillip Lemoyne is the "respectable and intelligent" woman's defense lawyer

5.What would be the best title for the passage ?

A. Shoplifting Shame of a PhD Student          

B. Apologizing for the Actions in Shops

C. Seeking Professional Help from Experts        

D. Controlling the Desire to Steal from Shops

题型:选择题

特洛伊木马攻击的威胁类型属于________。

A.授权侵犯威胁

B.植入威胁

C.渗入威胁

D.旁路控制威胁

题型:选择题

抹顶棚灯头圆形灰线,如板条、板条钢板网顶棚,其底层灰和中层灰应用
砂浆。与顶棚抹灰一样,应将底层灰压人______。使其结合牢固,然后使用活模______移动,从而使灰线形成。

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