It is generally believed that in applied investigation According to the author,

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问题 It is generally believed that in applied investigation
According to the author,

选项 A、the investigation of the life cycle of a protozoon is pure research.
B、applied investigation is looked down upon in modern society.
C、the discovery of X-rays was made in applied research.
D、the common classification of research is neither accurate nor impersonal.

答案D

解析 本题问根据作者…。由第一段第二句可直接得出"arbitrary"、"loose"分别与"impersonal"、"accurate"互为反义词,故"通常对于研究的分类既不准确又不客观"正确。对于原生动物的研究是理论研究:由第一段第七句"For example...be termed applied."可知对原生物的研究既有可能是理论研究也有可能是应用研究。在现代社会应用研究受歧视:第二段首句谈到"There exists in some circles...intellectual snobbery and ten dency to look contemptuously on applied investigation",可以看出只是在某些圈子里应用研究受到轻视,不能笼统地说为整个社会都歧视应用研究,本项属于过度引申。X射线是在应用研究中发现的:根据第一段第四句"...the discovery of electricity, X-rays...originated from pure research..."可知X射线是在理论研究中发现的。
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