如该患者确诊为霍乱,除补液治疗外,尚应给予抗菌药物治疗。疗程一般需多少天 A.2天

题型:单项选择题

问题:

如该患者确诊为霍乱,除补液治疗外,尚应给予抗菌药物治疗。疗程一般需多少天

A.2天
B.3天
C.4天
D.5天
E.7天

考点:临床执业助理医师内科学细菌感染(三)
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行政沟通的目的是( )。

A.培养感情

B.资源共享

C.统一思想

D.传递信息

题型:单项选择题

Passage Two

In 1998 consumers could purchase virtually anything over the Internet. Books, compact discs, and even stocks were available from World Wide Web sites that seemed to spring up almost daily. A few years earlier, some people had predicted that consumers accustomed to shopping in stores would be reluctant to buy things that they could not see or touch in person. For a growing number of time-starved consumers, however, shopping from their home computer was proving to be a convenient alternative to driving to the store.
A research estimated that in 1998 U.S. consumers would purchase $ 7.3 billion of goods over the Internet, double the 1997 total. Finding a bargain was getting easier, owing to the rise of online auctions and Web sites that did comparison shopping on the Internet for the best deal.
For all the consumer interest, retailing in cyberspace was still a largely unprofitable business, however. Internet pioneer Amazon. com, which began selling books in 1995 and later branched into recorded music and videos, posted revenue of $153.7 million in the third quarter, up from $ 37.9 million in the same period of 1997.Overall, however, the company’s loss widened to $ 45.2 million from $ 9.6 million, and analysts did not expect the company to turn a profit until 2003.Despite the great loss, Amazon com had a stock market value of many billions, reflecting investors’ optimism about the future of the industry.
Internet retailing appealed to investors because it provided an efficient means for reaching millions of consumers without having the cost of operating conventional stores with their armies of salespeople. Selling online carried its own risks, however. With so many companies competing for consumers’ attention, price competition was intense and profit margins thin or nonexistent. One video retailer sold the hit movie Titanic for $ 9.99, undercutting (削价) the $19.99 suggested retail price and losing about $ 6 on each copy sold.With Internet retailing still in its initial stage, companies seemed willing to absorb such losses in an attempt to establish a dominant market position.

Finding a bargain on the Internet was getting easier partly because______.

A.there were more and more online auctions

B.there were more and more Internet users

C.the consumers had more money to spend

D.there were more goods available on the Internet

题型:单项选择题

以下删除VLAN的命令中,无法执行的是______。

A.no vlan 1
B.no vlan 2
C.no vlan 1000
D.no vlan 1025

题型:单项选择题

如图所示,将小球a从地面以初速度v0竖起上抛的同时,将另一相同质量的小球b从距地面h处由静止释放,两球恰在h/2处相遇(不计空气阻力),则()

A.两球同时落地

B.相遇时两球速度相等

C.从开始到相遇,球a动能的减少量等于球b动能的增加量

D.相遇后的任意时刻,重力对球a做功功率和对球b做功功率相等

题型:单项选择题

我国润滑剂共分()组。

A、14

B、6

C、19

D、29

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