According to the passage, Fabian s theory makes use of which of the following principles？
A. Gas emanating from an explosion will be hotter the more distant it is from the origin.
B. The wavelength of radiation emitted by a gas as it cools remains constant.
C. If pressure remains constant, the volume of a gas will decrease as it is cooled.
D. The volume of a gas will increase as the pressure increases.
E. As gas cools, its density decreases.
规范，是指人们在特定环境下被要求如何行动、如何思维、如何体验的期望，是一种相对同定的行为表现。根据以上的定义，下面行为体现了规范的是()。
A. 一个从小生活在海边的人到草原工作，慢慢适应了那里的生活
B. 律师在法庭上表现镇定、稳重、客观、富于正义感
C. 小郑身着背心和短裤，脚上穿着拖鞋参加好朋友的婚礼
D. 为了使大家玩得更开心，我们制定了新的游戏规则
The author of the passage probably mentions Canizares determination in order to
A. clarify an ambiguity in Fabian"s research findings.
B. illustrate a generalization about the temperature of gas in a galaxy cluster.
C. introduce a new argument in support of the orthodox view of galaxies.
D. provide support for Fabian"s assertions about the Perseus galaxies.
E. provide an alternate point of view concerning the movement of gas within a galaxy cluster.
Which of the following best describes the organization of the passage？
A problem is described, and then reasons why various proposed solutions succeeded or failed are discussed.
B. A problem is described, and then an advantage of resolving it is offered.
C. A problem is described, and then reasons for its continuing existence are summarized.
D. The historical origins of a problem are described, and then various measures that have successfully resolved it are discussed.
E. The causes of a problem are described, and then its effects are discussed.
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