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【单选题】
18病人,男,80岁,COPD病史30年,近来发生气喘明显,查体:神志清,桶状胸,双肺叩诊有,呼吸音降低,不能平卧,剑突下可见心尖搏动,并伴有不同程度的下肢水肿。(1)此时病人易发生最主要的并发症是A.
急性肺源性心脏病
B.
呼吸衰竭
C.
自发性气胸
D.
肺部急性感染
E.
慢性肺源性心脏病
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【单选题】In the（ ），businesses offer services for which they charge a fee that is based on the number of size of transactions they process.Some of these services lend thenselves well to operating on the Web.
A.
Fee-for-Transaction Revenue Model
B.
Advertising-Suppored Revenue Models
C.
Web Catalogue Revenue Models
D.
Value chain
【单选题】We can offer you a ______ based upon the international standard.
A.
deal
B.
offer
C.
order
D.
quotation
【单选题】（ ）, businesses offer services for which they charge a fee that is based on the number of size of transactions they process.
A.
In the fee-for-transaction revenue model
B.
In the web catalog revenue model
C.
In the traditional catalog-based retail revenue&39; model
D.
In the advertising-supported revenue model
【单选题】题干:船舶在渔区内航行时:
A.
按照避碰规则要求，机动船应避让渔区内所有的网具
B.
按照海员通常做法和良好船艺要求，机动船应避让渔区内所有的网具
C.
任何时候，渔船所设置的网具不应妨碍船舶的安全通行
D.
只要不危及渔船或自身安全，机动船不必避让渔区内的网具
【简答题】Harvard University offer a classic academic course based on the model of __________ during its early years. [A] English universities [B] American universities [C] Puritan universities [D] its own
【单选题】船舶在渔区内航行时__。
A.
按照避碰规则要求,机动船应避让渔区内所有的网具
B.
按照海员通常做法和良好的船艺要求,机动船应避让渔区内所有的网具,
C.
任何时候,渔船所设置的网具不应妨碍船舶的安全通行
D.
只要不危及渔船或自身安全,机动船不必避让渔区内的网具
【单选题】—O K , $500, but that is my last offer. — ______
A.
Good idea!
B.
What did you say?
C.
Oh, it ’ s up to you.
D.
OK. It ’ s a deal.
【简答题】喷粉是根据流态化原理和 ( ) 原理,用氩气或其它的气体作为载气,将不同类型的粉剂(多为含铝物质)喷入钢水或铁水中进行精炼的一种冶金方法。根据气流速度和粉粒状态的变化,可以将整个固体粉粒的流态化过程分为固定床、( )和输送床三种基本状态。
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