单项选择题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 ______.