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It'sbest_andbringtheseitemswithyou,butinanemergency,youcangetthemasyourdestination.C.toprepareB.tobeprepared不理解说详细点

题目详情
It's best _and bring these items with you ,but in an emergency,you can get them as your destination.
C.to prepare
B.to be prepared 
不理解 说详细点
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答案和解析
B
因为prepare是及物动词,其后要跟宾语,所以不选C