题目
A.暂停服务(Out of Service)
B.严禁酒驾(Do Not Drink and Drive)
C.自行车停放处(Parking for Bicycles)
D.小心地滑(Caution: Wet Floor)
第4题
A.No food to be taken into the library
B.No eating in the library
C.Don’t bring food
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