we can see the sign____in a reading room or a libraryA.stop B.no photos C.no parking D.keep quiet

问题描述:

we can see the sign____in a reading room or a library
A.stop B.no photos C.no parking D.keep quiet

我们在图书馆或者阅览室能看见的提示语是什么?
显然是keep quiet 保持安静。选D

d保持安静