【单选题】Never leave food outside the refrigerator for more than two hours and keep refrigerator food _______________ 40°F.
【单选题】Never leave food _______________ the refrigerator for more than two hours and keep refrigerator food below 40°F.
【单选题】Never leave food outside the refrigerator _______________ more than two hours and keep refrigerator food below 40°F.
【简答题】Never leave food outside the refrigerator for more than two hours。
【单选题】( )年 3 月国务院通过颁布加快服务业发展的议程
【单选题】()是中国最早详细地论述艺术史和艺术理论的著作。