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【答案】
【1】From 8:30 a.m. to 4:30 p.m. from Sunday to Friday.
【2】There are six.
【3】First, " No smoking." Second, don't talk loudly. Third, help the workers keep the museum clean. Fourth, don't take photos. Fifth, when you are in trouble, ask workers for help. Sixth, don't touch the things on show in the museum.
【解析】
略