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【简答题】
For some people, it’s easy to get dressed for work. Pilots and police officers, for example, don’t have to make decisions about their work clothes. They wear uniforms to work every day. For many office workers, however, it is more difficult to choose clothes for work. They do not wear uniforms to the office. Also, many organizations are changing their dress codes . They are allowing their employees to wear casual(随意的) clothes to work. The change to casual work clothes began in the 1990s. At first, many companies in the United States allowed employees to wear casual clothes on one day of the week—Friday. Friday became “Casual Friday” or “Dress-down Friday”. Today, however, many companies are allowing their employees to wear casual clothes every day of the week. Some studies show that people are producing and achieving more when they are wearing comfortable clothes. Some companies also like the casual dress code because they don’t need to buy special clothes for work. They can save money this way. Unfortunately, a casual dress code can also cause problems. Sometimes employees think they can wear anything. Many companies have rules about casual clothes. They list the kinds of clothes that are not “business-casual” clothes. Blue jeans, sandals, and sportswear are examples of clothes that are usually too casual for the office. 小题1:What do pilots and police officers wear to work? A.Casual clothes. B.Sportswear. C.Blue jeans. D.Uniforms. 小题2:What do the underlined phrase “dress codes” mean? A.They tell what you can do and can’t do. B.They are rules about what clothes to wear. C.They save a lot of money. D.They show you what to say at work. 小题3:“Dress-down Friday” is a day when employees are allowed to_______. A.eat delicious food B.have smart uniforms on C.wear casual clothes to work D.work longer hours 小题4:Why do some companies agree to the casual dress code? A.They don’t need to buy special clothes for work. B.It is difficult for them to choose clothes for work. C.They don’t like the same uniforms. D.It is easy for them to make decisions about work clothes. 小题5:What problems can a casual dress code cause according to the passage? A.Employees seldom wear comfortable clothes. B.Usually employees put on expensive clothing. C.Employees always have too little on themselves. D.Sometimes employees dress too casually.
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A.
1.39V
B.
0.62V
C.
0.92
D.
1.07
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A.
离子型对比剂在血液内呈正、负离子形态存在
B.
离子型对比剂渗透压低于非离子型对比剂
C.
非离子型对比剂不是盐类,在血液内不离解
D.
双聚体比单聚体含碘量高
E.
三碘苯环的衍生物
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A.
饱和碳原子不能发生化学反应
B.
碳原子只能与碳原子形成不饱和键
C.
具有六个碳原子的苯与环己烷的结构相同
D.
五个碳原子最多只能形成五个碳碳单键
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A.
饱和碳原子不能发生化学反应
B.
碳原子只能与碳原子形成不饱和键
C.
具有六个碳原子的苯与环己烷的结构不同
D.
五个碳原子最多只能形成五个碳碳单键
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【多选题】价值链分析包括(    )。
A.
内部价值链分析    
B.
外部价值链分析
C.
行业价值链分析    
D.
竞争对手价值链分析
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A.
1.39 V
B.
0.62 V
C.
0.92 V
D.
1.07 V
【单选题】施工图设计阶段编制的造价文件是()。
A.
投资估算
B.
设计概算
C.
施工图预算
D.
修正概算
【判断题】预塑背压高,熔料更密实,易排除水分等低分子物质,塑化更均匀。
A.
正确
B.
错误
【单选题】根据微笑曲线,最不应提倡的价值环节是()
A.
价值链上游
B.
价值链中游
C.
价值链下游
D.
价值链上游和下游
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