在网络中使用交换机代替集线器的好处是()。 A.提高带宽率 B.减少冲突 C.隔绝广

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问题:

在网络中使用交换机代替集线器的好处是()。

A.提高带宽率

B.减少冲突

C.隔绝广播帧

D.便于管理

E.减少成本

考点:网络互联技术网络互联技术题库
题型:多项选择题

男,45岁,便血3个月,直肠镜检示1cm直肠息肉1个,活检为腺瘤。

直肠息肉的便血,哪项是正确的

A.发生在排便全过程

B.多为连续性出血

C.血与粪便相混

D.很少引起贫血

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风心病房颤患者,近一周服地高辛0.25mg和呋塞米20mg.每日二次,突然倒地,人事不醒,四肢抽搐,心音消失,最可能的原因是?

A.快速性房颤

B.脑栓塞

C.心室颤动

D.三度房室传导阻滞

E.心力衰竭

题型:多项选择题

Universal Studios Hollywood, a park for fun, entertainment, and even learning, is taking its first steps in a 25-year plan to expand itself. The plan is to expand the amusement facilities (设施) and develop a residential (住宅的) neighborhood in the area. "I’m really excited about what’s happening here," one visitor said.

Originally known as Universal City, Universal Studios Hollywood was founded in 1915 by Carl Laemmle. It was the first studio offering tours during which people could watch films in production. Since then, Universal Studios Hollywood has grown to include theme parks, restaurants, hotels, shopping malls, and etc. This park proved to be so popular that Universal Studios Florida opened in 1990.

With such past success and growth, it’s no wonder that Universal Studios Hollywood is excited about its latest plans for expansion. The original plans had to be changed because of environmental regulations (规章), but now they are ready to move ahead at full speed.

While many new attractions are in the works for the new expansion, Universal Studios Hollywood will keep some of its old attractions, such as the Bates Mansion from the film Psychoand the Shark from Jaws. These attractions offer a look at the historical development of the film industry, and show the advances in film-production techniques over the years. But while preserving the past, plenty of new high-tech sound stages, rides, and theaters are in the works. In May, Citywalk, a shopping, dining, and entertainment facility, began undergoing renovations (整修), and spring also saw the opening of Sky Venture Hollywood, an attraction where visitors can float 40 feet into the air on 125 mph winds.

小题1:As a result of the popularity of Universal Studios Hollywood, ______.

A.other parks were opened

B.homeowners lost their houses

C.Carl Laemmle decided to produce films

D.more environmental regulations have been made小题2:The visitor in the first paragraph holds a(n) _________ attitude towards the expansion.

A.supportive

B.doubtful

C.objective

D.Negative小题3:Why will Universal Studios Hollywood preserve some old attractions?

A.They’re too costly to replace.

B.They show the history of the film industry.

C.They’re more popular than others.

D.They are more beautiful than the new ones.小题4:From the passage we learn that Universal Studios Hollywood ____.

A.was built as a theme park at first

B.was not allowed to expand at first

C.has finished its changes already

D.has been in Florida for 30 years

题型:多项选择题

胎盘娩出前,一阵阵大量暗红色血液流出,伴有血块,可能的诊断为

A.子宫乏力性出血
B.软产道损伤所致之出血
C.凝血机制障碍
D.胎盘剥离不全
E.子宫胎盘卒中

题型:多项选择题

水压试验( )的温度一般不得低于5℃。

A.试验用水

B.容器表面

C.性能试验

D.试验场地

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