对于图形专题资料，可在地籍坐标系下采用自动跟踪（）化的方式进行数字化，或采用扫描纸图

阅读理解。

     Rebecca Stevens was the first British woman to climb Mount Chomulongma. Before she went up the

  highest mountain in the world, she was a journalist and lived in a small flat in South London.

     In 1993, Rebecca left her job and fer family and traveled to Asia with some other climbers. She found

  that life on Chumolongma is hard. "You must carry everything on your back," she said, "so you can only

 take things that you will need. You can't wash on the mountain, and in the end I didn't even take a

 toothbrush. I am usually a clean person but there is no water, only snow. Water is very heavy so you only

  take enough to drink!"

     When Rebecca reached the top of the Mount Chumolongma on May 17,1993, it was the best moment

  of her life. Suddenly she became famous.

     Now she has written a book about the trip and people often ask her to talk about it. She has a new job

 too, on science program on television.

     Rebecca is well known today and she has more money, but she still lives in the little flat in South

 London among her pictures and books about mountains.

1. Rebecca was a _____ before she climbed Chumolongma.

    A. climber        

    B. scientist        

    C. journalist        

    D. writer

2. Rebecca came to Asia to  _____ .

    A. leave her family                  

    B. to leave her job

    C. find a new job                  

    D. climb the mountain

3. According to the passage, life hard on Chumolongma because  _____ .

    A. the mountain is too high            

    B. all the living things hard to carry

    C. she is usually a clean person        

    D. water there is too little to wash

4. After her trip to Asia, Rebecca  _____ .

    A. lived in the same flat              

    B. did the same job

    C. learned to take pictures            

    D. began to write books

5. Rebecca became famous because  _____ .

    A. her hard woman                  

    B. her pictures and books

    C. having so much money            

    D. reaching the top of the world

在正方体ABCD-A₁B₁C₁D₁中，异面直线BA₁与CC₁所成的角为[ ]

A．30°

B．45°

C．60°

D．90°

德育的个体发展功能的发挥应注意().

A．强调德育的外在强制性

B．注意功能实现的间接性

C．注重个体的享用性

D．尊重学习个体的主体性

世界银行、国际货币基金组织、关税与贸易总协定这三大支柱的出现，积极意义在于[ ]

A．利于二战后各国经济的恢复和发展

B．利于美国的经济扩张

C．直接推动了马歇尔计划的实行

D．利于世界经济朝着体系化和制度化方向发展

有一圆柱形工件，用千分尺测其直径，如图所示，试计算工件外径？