企业库存控制出现问题的表现有（）等。A.延迟订购数量持续增加 B.周期性缺乏足够的储

连一连。     

共同经历过忧患和危难之交                       忘年之交

仅见一面，相知较浅之交                          莫逆之交

小时候就相好，结交的朋友                       患难之交 

年岁差别大、行辈不同而交情深厚            竹马之交 

彼此心志相通、情投意合                          一面之交

贤者之间的交情，平淡如水                       君子之交

We don't know his telephone number; if we ____, we _____   him now. [ ]

A. know; must telephone

B. knew; would telephone

C. have known; have telephoned

D. knew; have telephoned

心功能不全时，下列哪项不是其代偿的方式（）

A.交感神经兴奋

B.心肌肥厚

C.血管紧张素分泌增加

D.心腔扩大

E.迷走神经兴奋

什么是操作系统？

Uncle Vernon, quite unlike Harry Potter who looked nothing like the rest of the family, was large, very fat, and________, with an enormous black mustache.

A．neckless

B．necklace

C．reckless

D．rackless