A. is omnipresent in scientific research B. is unavoidable in scientific research C. may be employed either consciously or unconsciously D. is desirable only in some scientific researches 参考答案:C 答案解析:我们首先排除D,因为从文章中可知除了科研机构中的科学家,制造业中也存在。倒数第四段提到,在很多情况下科学家们会不自觉地去利用欺瞒因素,而这种倾向在任何有争议的科学领域都可看到。也就是说,在无争议的领域