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The word 'groundbreaking' (paragraph 7) can be interpreted as______.
A.pioneering
B.essentially new
C.epoch-making
D.evolutionary

A.A.pioneering
B.essentially
B.epoch-making

【参考答案】

A
解析：根据上下文的文意，用提取死亡的雌性大熊猫的细胞的方法使大熊猫成功受孕很难也很费时，但是如果成功的话，将......

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There is virtually no limit to how one can serve community interests, from spending a few hours a week with some charitable organization to practically fulltime work for a social agency. Just as there are opportunities for voluntary service 【B1】______ (VSO) for young people before they take up full-time employment, 【B2】______ there are opportunities for overseas service for 【B3】______ technicians in developing countries. Some people, 【B4】______ those who retire early, 【B5】______ their technical and business skills in countries 【B6】______ there is a special neeD.So in considering voluntary or 【B7】______ community service there are more opportunities than there 【B8】______ were when one first began work. Most voluntary organizations have only a small fulltime 【B9】______ , And depend very much on volunteers and part-timers. This means that working relationships are different from those in commercial organizations, and values may be different. 【B10】______ some ways they may seem more casual and less efficient, but one should not 【B11】______ them by commercial criteriA.The people who work with them do so for different reasons and with different 【B12】______ , both personal and 【B13】______ . One should not join them 【B14】______ to arm them with professional expertise; they must be joined with commitment to the 【B15】______ , not business efficiency. Because salaries are 【B16】______ or non-existent many voluntary bodies offer modest expenses. But many retired people take part in community service for 【B17】______ , simply because they enjoy the work.Many community activities possible 【B18】______ retirement were also possible during one's working life but they are to be undertaken 【B19】______ seriously for that. Retired people who are just looking for something different or unusual to do should not consider 【B20】______ community servicE.【B1】______A.overseaB.overseaC.overseasD.overseas
A.B.
C.
【B1】______
A.oversea
B.oversea
C.overseas
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