The monitoring software installed on the phone is NOT used to______. A．figure up how many places the users have been to B．record how long the users stay in one place C．see what activities the users do in each place D．track how often the users turn on their phones
A. A．figure B.record C.see D.track
【参考答案】
C 细节题。根据题干定位到第一段，定位词为：monitoringsoftware。倒数第二段第二句指出“研究人员......