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当前学科：综合录井工（中级）
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研究层理有何意义？
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Space is a dangerous place, not only because of meteors(流星) 【C1】______be-cause of rays from the sun and【C2】______stars. The atmosphere again acts【C3】______our protective blanket on【C4】______. Light gets through, and this is essential【C5】______plants to make the food which we【C6】______. Heat,【C7】______, makes our environments tolerable and some ultraviolet(紫外线的)rays penetrate the【C8】______. Cosmic(宇宙的)rays of various kinds come【C9】______the air from outer space, but【C10】______quantities of radiation from the sun are screened off.【C11】______men leave the atmosphere they are【C12】______to this radiation but their spacesuits or the walls of their spacecraft, if they are inside,【C13】______prevent a lot of radiation damage. Radiation is the greatest known danger to explorers in【C14】______. Doses of radiation are measured in【C15】______called "rems(雷姆)". We all【C16】______radiation here on earth from the sun, from cosmic rays and from radioactive minerals. The "【C17】______" dose of radiation that we receive each year is about too milli-rems; it【C18】______according to where you live, and this is a very rough estimate. Scientists have reason to think【C19】______a man can【C20】______far more radiation than this without being damaged; the figure of 60 rems has been agreed on.【C1】A．but alsoB．ever soC．as wellD．or so
牡丹灵通卡应急付款最高限额为人民币（）万元
必须监测出凝血状况（）
对个人买卖有价证券（含国债，但不含股票）的所得要按（）缴纳个人所得税。
实现理想要有艰苦奋斗的精神。在社会主义条件下，艰苦奋斗的精神表现在（）。
固定利率债券价格与贴现率呈正向关系。()
审查建筑工程消防设计依据的消防技术标准及适用的标准条文是否正确，应首先查看（）。
抵债资产管理工作主要包括预期实现抵债资产的现值评估与保全；抵债资产的风险测定与管理；已实现抵债资产的处置和变现
下列传染病，根据传染病防治法要求，不按甲类传染病管理的是（）。
锥颈部分长70mm，锥度为1∶5，测量大端直径为60mm，小端直径应为（）mm。