原题
Read a sign.
Cranston Library
Open Monday - Friday, 9:00 A.M. - 8:00 P.M.
Saturday and Sunday, 10:00 A.M. - 5:00 P.M.
• Food or drinks allowed only in the entrance-area café.
• Keep noise to a minimum.
• Return books that are not being checked out to the front desk when finished; do not reshelve.
For assistance, contact library staff at 555-0168.
What is the main purpose of the sign?
ATo provide rules for library use
BTo promote library memberships
CTo announce recent library acquisitions
DTo advertise library events
正确答案：A
解题思路
老师暂未填写解题思路。