单选题
As to the precise value of this scientific knowledge, it depends to a great extent on how it has been acquired and on who has been imparting it.
【正确答案】
B
【答案解析】[解析] 这句话的意思是:这项科学知识的准确价值在很大程度上取决于它的获取方式以及是谁在______。在给出的选项中,pursue:追求,追赶;instruct:教授,指示,通知;summarize:概述,总结;accumulate:集聚,堆积。根据题意可知,划线部分词语可用B项替换,正确答案为B。