The main types of social networking services are those that contain category places (such as former school year or classmates), means to connect with friends (usually with self-description pages), and a recommendation system linked to ( ).
A、net
B、interests
C、others
D、trust
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信管網(wǎng)公眾號(hào)
信管網(wǎng)訂閱號(hào)
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