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【单选题】
输送带适用于长距离、大运量、高速度的带式输送机。A.
钢丝绳芯
B.
织物芯
C.
棉帆布芯
D.
聚酯帆布芯
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举一反三
【单选题】For the limited-capacity tour programs, the use of _____ is a convenient way to reduce cost.
A.
shell folders
B.
umbrella brochures
C.
regular tour brochures
D.
booklets
【单选题】To compete with Eurostar, airlines should
A.
use lower capacity planes.
B.
cut frequency.
C.
offer cheaper tickets.
D.
maintain the flight schedule.
【单选题】大气中的氧是引起药物制剂氧化的主要因素，下列防止药物氧化措施表述不正确的是（）
A.
在溶液和容器中通入惰性气体如二氧化碳或氮气，置换水中的氧气，并且二氧化碳的驱氧效果强于氮气
B.
对一些受pH值影响较大液体制剂，驱氧时，仍通入驱氧效果较好的二氧化碳
C.
对于一些固体药物，可采取真空包装
D.
配液时使用新鲜煮沸放冷的注射用水
E.
为了防止易氧化药物的自动氧化，在制剂中必须加入抗氧化剂
【单选题】Which of the following is the competitive edge of Cubic Design in launching Rugged Canopies?
A.
They are the market leader in providing outdoor facilities for sports and many other public activities.
B.
Their materials can endure extreme weather conditions and can last for longer time than their competitors.
C.
Their price is very competitive because the raw material they used in making it is what they stock daily for mezzanines.
【单选题】Cubic canopies can be used as protection for ____________.
A.
storage areas and indoor stairs
B.
waste bin areas and restrooms in a building
C.
bicycle stands and baseball dugouts
D.
public swimming pools and employee basements
【单选题】Which unit do we use to refer to the capacity of water ?
A.
meter
B.
kilometer
C.
cubic meter
D.
square meter
【单选题】In order to use the "level capacity strategy," variations in demand are met by:
A.
varying output during regular time without changing employment levels
B.
varying output during regular time by changing employment levels
C.
(a) and (b)
D.
using combination of inventories, overtime, part time, and back orders
E.
price adjustments
【单选题】大气中的氧是引起药物制剂氧化的主要因素，下列防止药物氧化措施表述不正确的是
A.
在溶液和容器中通人惰性气体如二氧化碳或氮气，置换水中的氧气，并且二氧化碳的驱氧效果强于氮气
B.
对于一些固体药物，可采取真空包装
C.
对一些受pH值影响较大液体制剂，驱氧时，仍通入驱氧效果较好的二氧化碳
D.
配液时使用新鲜煮沸放冷的注射用水
E.
为了防止易氧化药物的自动氧化，在制剂中加入抗氧化剂
【简答题】高阶系统简化为低阶系统的合理方法是什么？
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