问题 单项选择题 案例分析题

患者男,30岁。餐后1小时突发上腹部剧痛,很快扩散至全腹,呈持续性腹痛,伴有恶心、呕吐。查体:腹式呼吸消失,全腹压痛、反跳痛、肌紧张明显,肝浊音界消失。腹部X线平片检查:见膈下游离气体。临床诊断胃十二指肠穿孔伴弥漫性急性腹膜炎。

患者腹膜炎的性质属于()

A.细菌性腹膜炎

B.化学性腹膜炎

C.渗出性腹膜炎

D.毒素性腹膜炎

E.化脓性腹膜炎

答案

参考答案:B

单项选择题

In 1998 consumers could purchase virtually anything over the Internet. Books, compact discs, and even stocks were (1) from World Wide Websites that seemed to (2) almost daily a few years earlier, some people had predicted that consuners accustomed to shopping in stores would be (3) to buy things that they could not see or touch (4) . For a growing number of time-starved consumers, however, shopping from their home computer was proving to be a convenient (5) to driving to the store.

A research estimated that in 1998 US consumers could purchase $ 7.3 billion of goods over the Internet, double the 1997 total. Finding a bargain was getting easier, (6) the rise of online auctions and Websites that did comparison shopping on the Internet for the best (7) .

For all the consumer interest, (8) in eyberspaee was still a largely (9) business, however. Internet pioneer Amazon. eom, which began selling books in 1995 and later (10) into recorded music and videos, posted (11) of $ 153.7 million in the third quarter, up from $ 37.9 million in the same period of 1997. Overall, (12) , the company’ s loss widened to $ 45.2 million from $9.6 million, and analysts did not expect the company to turn a profit (13) 2001. (14) the great loss, Amazon. tom had a stock market value of many billions, reflecting investors’ (15) about the future of the industry.

Internet retailing appealed (16) investors because it provided an efficient means for reaching millions of consumers without having the cost of operating (17) stores with their armies of salespeople. Selling online carried its own risks, however, (18) so many companies competing tor consumers’ attention, price competition was (19) and profit (20) thin or nonexistent.

20()

A.benefits

B.margins

C.advantages

D.gains

选择题