Why does social media get risky according to the author?

• A、The users’ social connection is lost.

• B、The users’ messages may be ignored.

• C、The users ' real emotion may be hidden.

• D、The users' voices can hardy be heard.

58.（）

 What can be infered from the passage about “language delay ?

• A、It can be prevented by doctors.

• B、It is seldom found among children.

• C、It can be improved with certain help.

• D、It may result from hearing problems.