【单选题】Three airlines account for most of the air traffic in and out of a local city. If the three airlines joined together in setting fares and air travel schedules, economists would say that they were acti...
A.
monopolistic competitors, as each firm would have to differentiate its airline services from its rivals.
B.
perfect competitors, as each firm would sell travel services at the same fares as the other airlines.
C.
a cartel, as the three airlines together would attempt to coordinate policies in the local market to jointly maximize profits.
【单选题】Which of the following is not one of the three major airlines in China?
C.
China Southern Airlines
D.
China Eastern Airlines
【简答题】Our class usually begins at 10 o'clock, but yesterday it _______ (begin) at 10:30.2. My roommate often comes home around midnight, but last night he _______ (come) home at 3 a.m.3. I almost always do ...
【单选题】__________ ist der größte Containerhafen in Deutschland.
【简答题】以下关于环境的说法错误的是:() A.环境分为内环境和外环境 B.医院环境是医务人员为患者提供医疗服务的场所 C.医院的建筑设施,院容院貌属于物理环境 D.医院的社会环境包括医疗服务环境和管理环境 E.医院的环境设施美观大方即可
【判断题】Der Hamburger Hafen ist der größte Hafen in Europa.
【多选题】抗菌药物是细菌产生耐药的重要环境因素之一( )
A.
引起医院感染的微生物的耐药性比社会感染的微生物耐药性更多见
B.
医院中耐药菌株感染者使用抗感染药物比敏感株感染或定植者使用的抗菌药物更多
【简答题】医院的环境可分为社会环境和 _________ 环境。社会环境又可分为 _________ 环境和 _________ 环境。