Whatisthefunctionofrepetition？
A.Tomakeyourfriendsandfamilylaugh.
B.Tohighlighttherepeatedpart.
C.Tolengthenthecontent.
D.Togiveafreshviewoflife，toseethingsinawhollynewandenergizedway.
正确答案：Tohighlighttherepeatedpart.
题目：What is the function of repetition？