21.Who are Library Special Needs Services intended for?
A.Those who need medical help.
B.Those who are fond of reading.
C.Those who have talking disabilities.
D.Those who can't go to the library due to disability.
22.If people with eye diseases want to learn about history,they
can choose
A.captioned videos
B.magazines
C.talking books
D.ordinary printed books
23.What can we learn from the text?
A.Few entertaining resources are offered here.