题目内容
Put in the blanks appropriate prepositions or adverbs.They say they will back us ________, but I'm afraid we can't count ________ them. They are mearly paying lip service to the idea.
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Put in the blanks appropriate prepositions or adverbs.We need you. You can't back ________ now. We must stick ________ it together until it's finished.
Put in the blanks appropriate prepositions or adverbs.His guess has been borne ________ by facts. The bridge was blown ________ by terrorists.
层架按照储备物资的( )分类,分为轻型、中型和重型。
( )货架是专门用于存放堆码在托盘上的物资的传统货架。
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