2. 外语
  3. Rod was already an established lab head when he decided he needed to learn more about crystallography(结晶学). In 1995 he went back

Rod was already an established lab head when he decided he needed to learn more about crystallography(结晶学). In 1995 he went back

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问题     Rod was already an established lab head when he decided he needed to learn more about crystallography(结晶学). In 1995 he went back to school at the CSHL on Long Island, New York. Together with 22 fellow scientists, ranging from Ph.D. students to principal investigators like himself, he 【B1】______ a two-week course. The training【B2】______: three years later, Rod became the first scientist to use crystallography to resolve the【B3】______ of an ion(离子) channel. In 2003 he won the Nobel Prize in Chemistry for this work.
    Rod’s experience may not be typical for the scientists【B4】______ the postgraduate training courses that are offered by a handful of institutes around the world. But it shows that scientists can benefit from【B5】______ new skills at any stage of their career. Courses range from two to six weeks in length and focus on the【B6】______ tools and technologies in a specific field. Classes are kept【B7】______small, usually about 20 people, providing students with the opportunity to get hands-on experience in well-equipped labs between lectures and even 【B8】______ their own mini-projects.
    "You could really work as much as you liked," says Keech, a 26-year-old【B9】______ researcher at the Plant Science Centre in Sweden, who last year attended the two-week course at the CSHL.
    "If you wanted to do your own【B10】______at two in the morning there was no problem finding people happy to help yoa and machines ready to use," adds Keech. He says that he has benefited from the course, and now uses the methods he learnt there in his day-to-day work.
【B2】
选项
答案paid off
解析 空格所在句缺谓语，且需为动词过去式。pay off“成功，有回报”。注意pay的过去式是不规则变化，要把y改成i，再加-d。
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