郑国的战乱持续了几年（） A.六年 B.十年 C.八年 D.七年

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.

15（）

A.enthusiasm

B.depression

C.optimism

D.pessimism

下列哪项不是脾的生理功能：（ ）

A．水谷的受纳和腐熟

B．水谷精微的转输

C．水液的吸收和转输

D．脏器位置的维系

E．血液的统摄

郁证中，心脾两虚的常用治法是（）。

A.健脾养心，补益气血

B.健脾养心，理气化痰

C.化痰散结，行气开郁

D.理气畅中，疏肝解郁

E.清肝化痰，疏肝解郁

我国刑法规定，“对犯受贿罪的，根据受贿所得数额及情节，依照本法第三百八十三条的规定处罚”。这项规定属于( )规范。

A．情况性

B．选择性

C．授权性

D．准用性

在冰河世纪中期，地球上有数百万的猛犸象，然而两万年之后，它们几乎全部绝迹。从对数百个猛犸象化石上萃取下来的DNA进行检测后发现，猛犸象个体之间的基因差异并不明显，所以它们不能适应自己的环境。10万年前的冰河世纪晚期的世界森林扩张最终导致许多动物所赖以生存的冰冻草原后来慢慢被森林所取代。 由此推出( )

A．该对这些巨大动物从历史上消失负责的是饥饿的史前猎人

B．气候的剧变是猛犸象绝迹的主因

C．森林扩张最终导致猛犸象灭绝

D．灭绝是其基因变异的结果