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自制原始凭证的填制，都应由会计人员填写，以保证原始凭证填制的正确性。（）
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In recent years a new farming revolution has begun, one that involves the (61) of life at a fundamental level--the gene. The study of genetics has (62) a new industry called biotechnology. As the name suggests, It (63) biology and modern technology through such techniques as genetic engineering. Some of the new biotech companies specialize in agriculture and are working feverishly to (64) seeds that give a high yield, that (65) diseases, drought and frost, and that reduce the need for (66) chemicals. If such goals could be achieved, it would be most (67) . But some have raised concerns about genetically engineered crops. In nature, genetic diversity is created within certain (68) . A rose can be crossed with a different kind of rose, but a rose will never cross with a potato. Genetic engineering, (69) usually involves taking genes from one species and inserting them into another (70) to transfer a desired characteristic. This could mean, for example, selecting a gene which leads to the production of a chemical with anti-freeze (71) from an artic fish, and inserting it into a potato or strawberry to make it frost-resistant. (72) , then, biotechnology allows humans to (73) the genetic wails that separate species. Like the green revolution, (74) some call the gene revolution contributes to the problem of genetic uniformity--some say even more so (75) geneticists can employ techniques such as cloning and (76) culture (培养), processes that produce perfectly (77) copies. Concerns about the erosion of biodiversity, therefore, remain. Genetically altered plants, however, raise new (78) , such as the effects that they may have on us and the environment. "We are flying blindly into a new (79) of agricultural biotechnology with high hopes, few constraints, and little idea of the potential (80) " said science writer Jeremy Rifkin.
设变量a和b已正确定义并赋初值。请写出与a=a+b等价的赋值表达式 【6】 。
（一）S市有一面积为4000m2的国有出让土地，用途为城镇混合住宅用地，拟在2007年1月1日进行土地使用权转让，试根据以下资料估算该宗地于转让日期的单位面积价格和总价格。（1）证载土地使用期至2070年1月1日，但限定商业用途最高土地使用年限为40年。（2）宗地形状为规则平行四边形，规划容积率≤3.3。宗地实际用途为城镇混合住宅用地，根据具体规划指标，确定商、住比例为1：9。开发程度实际与设定均为宗地红线外“五通”（即通路、通上水、通下水、通电、通信）和宗地红线内场地平整。（3）该市基准地价2005年公布，基准日设定为2005年1月1日，土地开发程度设定为红线外“五通”（即通路、通电、通上水、通下水、通信），红线内场地平整，商业、住宅、工业用地年限分别设定为40年、70年、50年。该宗地属商业四级、住宅四级用地，其对应的基准地价为商业800元/m2，住宅450元/m2。（4）其他相关资料如下。①该市同类用地价格在2005年1月至5月没有变化，2005年6月至2006年12月每月递增0.5%。②商业用地、居住用地的还原利率均为6%。③根据容积率修正系数表，该市同类型土地在乎均容积率为2.5时，对应的地价水平指数为100，容积率每增高或降低0.1，则地价向上或向下修正1%。④根据基准地价因素条件分析，该地块影响因素修正幅度商业为-2%，住宅为3%。⑤基准地价系数修正公式为：宗地地价=基准地价×（1+影响因素修正系数）×年期修正系数×期日修正系数×容积率修正系数+土地开发程度修正额。
Passage Three The average number of authors on scientific papers is sky-rocketing. That’s partly because labs are bigger, problems are more complicated, and more different subspecialties are needed. But it’s also because U.S. government agencies have started to promote "team science". As physics developed in the post-World War II era, federal funds built expensive national facilities, and these served as surfaces on which collaborations could crystallize naturally. Yet multiple authorship—however good it may be in other ways--presents problems for journals and for the institutions in which these authors work. For the journals, long lists of authors are hard to deal with in themselves. But those long lists give rise to more serious questions when something goes wrong with the paper. If there is research misconduct, how should the liability be allocated among the authors If there is an honest mistake in one part of the work but not in others, how should an evaluator aim his or her review Various practical or impractical suggestions have emerged during the long-standing debate on this issue. One is that each author should provide, and the journal should then publish, an account of that author’s particular contribution to the work. But a different view of the problem, and perhaps of the solution, comes as we get to university committee on appointments and promotions, which is where the authorship rubber really meets the road. Half a lifetime of involvement with this process has taught me how much authorship matters. I have watched committees attempting to decode sequences of names, agonize over whether a much-cited paper was really the candidate’s work or a coauthor’s, and send back recommendations asking for more specificity about the division of responsibility. Problems of this kind change the argument, supporting the case for asking authors to define their own roles. After all, if quality judgments about individuals are to be made on the basis of their personal contributions, then the judges better know what they did. But if questions arise about the validity of the work as a whole, whether as challenges to its conduct or as evaluations of its influence in the field, a team is a team, and the members should share the credit or the blame. The best title for the passage can be ______
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