What are the useful tips for safety when foreigners in Chinaare on vacation?
A.
Sending update messages to everyone that he or she is not home.
B.
T hinking about the content of the post b efore posting on the Moments ( 朋友圈 ) .
C.
Never sharing detailed travel information with irrelevant persons .
D.
Switching off the location applications ( 定位功能 ) when using social media.