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.
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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。
A. 规格
B. 型号
C. 复杂性
D. 重量级
( )货架是专门用于存放堆码在托盘上的物资的传统货架。
A. 移动式货架
B. 悬臂式货架
C. 托盘货架
D. 旋转式货架
( )式货架平常能够密集相连排列,存取物资时货架沿轨道滑出,如此能够将仓库面积利用率提升到80%,要紧用在档案治理等重要或贵重物品的保管中使用。
A. 旋转式货架
B. 驶入/驶出式货架
C. 移动式货架
D. 重力式货架
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