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建设单位应当按照规划条件进行建设；确需变更的，必须向城市、县人民政府城乡规划主管部门提出申请。( )
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女，27岁，心慌气短8年，反复咯血2年，近2d又咯血不止就诊。查体：双颊紫红，唇发绀，呼吸困难，双肺底满布湿啰音，脉搏强弱交替，心率120/min，心尖区有舒张期杂音，下肢不肿，肝脾不大 病人不断咯血的原因是
The differences in relative growth of various areas of scientific research have several causes. 61 ) Some of these causes are completely reasonable results of social needs. Others are reasonable consequences of particular advances in science being to some extent self-accelerating. Some, however, are less reasonable processes of different growth in which preconceptions of the form scientific theory ought to take, by persons in authority, act lo alter the growth pattern of different areas. This is a new problem probably not yet unavoidable; but il is a frightening trend. 62) This trend began during the Second World War, when several governments came to the conclusion that the specific demands that a government wants to make of its scientific establishment cannot generally be foreseen in detail. It can be predicted, however, that from time to time questions will arise which will require specific scientific answers. It is therefore generally valuable to treat the scientific establishment as a resource or machine to be kept in functional order. 63)This seems mostly effectively done by sup- porting a certain amount of research not related to immediate goals but of possible consequence in the future. This kind of support, like all government support, requires decisions about the appropriate recipients of funds. Decisions based on utility are more difficult. The goal of the supporting agencies is the appraisable one of supporting good as opposed to bad science, but a valid determination is difficult to make. Generally, the idea of good science tends to become confused with the capacity of the field in question to generate an elegant theory. 64) However, the world is so made that elegant systems are in principle unable to deal with some of the world’s more fascinating and delightful aspects. 65 ) New forms of thought as well as new subjects for thought must arise in the future as they have in the past, giving rise to new standards of elegance. Some of these causes are completely reasonable results of social needs. Others are reasonable consequences of particular advances in science being to some extent self-accelerating.
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