【单选题】When you buy in bulk (批量购买,大宗购买)you can obtain_________ or rebates.
【简答题】废品是指不符合规定的技术标准,不能按照原定用途使用,或者需要加工修理才能使用的()、()或()。
【单选题】Which is the proper place for you to buy bulk items when driving? ______
B.
At wherever you can buy cheaper ones.
C.
At the place you just go out of the things you need.
D.
In the stores near your house.
【简答题】北京(40°N)在冬至日正午的太阳高度角是()°。
【单选题】男性,58岁,慢性肺源性心脏病患者,人院后咳嗽.呼吸困难.昏迷,经气管切开后症状好转,4天后咳黄痰增加。WBC11×10^9/L。该患者入院时可能的并发症是