A． Do not copy or paste pictures to your websit
B． Sanitizing your photos online guarantees their safet
C． Compared with emails, websites are safer to share photo
D． Even your friends may use your photos for a bad purpos
对话中嘉宾提到，一旦朋友为泄私愤或受妒意驱使，照片很容易被公开，可见即使是朋友也可能不正当地使用你的照片，因此选D。
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A． The child's academic performanc
B． The child's character and personalit
C． The child's computer skill
D． The child's willingness to communicat
A． Frequently change their passwords of online account
B． Put their photos online frequently and randoml
C． Guarantee the decency of language on their site
D． Use their real full name for their online accoun
A． keep updated with current internet application
B． split the bill with their children for going onlin
C． get the password of their child's online accoun
D． ask their kids to watch the language on their site