Who does the word "Stakhanovites" refer to according to the passage

单项选择题Crippen was absent from the DNB ______.

单项选择题The writer suggests that there is no sense in buying the latest volume ______.

单项选择题Throughout the passage, the writer' s tone towards the DNB was ______.

单项选择题On the issue of who should be included in the DNB, the writer seems to suggest that ______.

单项选择题The author quoted a few entries in the last paragraph to ______.