在藏语中，“雪”是酸奶的意思，“顿”是“吃”、“宴”的意思，雪顿节按藏语解释就是吃酸奶的节日，因此又叫“酸奶节”。()
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According to the author, the shift from categorizing to indexing______.
A. is an inevitable phenomenon in the information era
B. is a regrettable lapse in knowledge organization
C. has caused our overdependence on Google
D. brought about the commerialisation of Google
一般要求市区的急救平均反应时间为
A. 8min
B. 10～15min
C. 20min
D. 25min
E. 3～5min
"A bad apple problem" is most likely to refer to "______".
A. a few corrupt individuals hurting a team or an organization
B. systematic practices that bring an organization off course
C. the failure in discovering objective scientific truths
D. research errors resulted from violation of scientific methods
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