钢轨打磨时，其他人员应远离打磨（）。A、左侧B、前方C、两侧和前方D、左侧和前方

治疗咳嗽气喘，肠燥便秘，应选用的药物是（）。

A.紫苏子

B.半夏

C.火麻仁

D.柏子仁

E.郁李仁

隋朝末年，有位商人欲通过大运河从余杭运送一批粮食到洛阳，其先后要经过  [ ]

A．江南河→邗沟  

B．邗沟→江南河→通济渠  

C．江南河→邗沟→永济渠  

D．江南河→邗沟→通济渠

我国“十一五”计划已基本完成，在此朋问，我国的四大工程--西气东输、西电东送、南水北调、青藏铁路取得了举世瞩目的成就．对于南水北调工程，叙述正确的是（　　）

A．将珠江水引入华北、西北地区

B．改善水资源时间分布不均的状况

C．会严重影响南方地区居民的用水

D．解决我国水资源空同分布不均的问题

当计算机死机后，可以采用如下的处理方式（）来解决。

A、按CTRL+ALT+DEL

B、关掉显示器电源，再打开

C、拍打主机箱若干下

D、关掉主机电源后，再打开电源

E、按主机箱上的RESET键

The development of e-commerce may well bring the world into a brand new era of "electronic currency". At the moment, (52) areas in Europe, the United States and Asia have already started studying the possibility of an electronic currency. Electronic currency is not only about currency. It (53) to an entire finance system on the Net. It includes a virtual numeric currency, an electronic system of withdrawals, transfers and loans, and (54) cards of all shapes and sizes. The (55) of an electronic currency system implies the emergence of "virtual banks" and "virtual enterprises". Actually, the first virtual bank appeared in the US in 1995. (56) it is a small and insignificant bank, it represents the trend of the future. In time to come, we may even have to (57) the familiar paper currency.

As the Net pushes the economy (58) rapidly, the economy is also bringing the Net market forward, resulting in the Internet itself becoming the world’s largest emerging market. Of course, this is just the beginning. Although there are many companies which made huge profits (59) in the Internet market, they tend to be small companies. To date, most companies are making losses. The competition in the knowledge-based economy will also be more (60) This will definitely promote (61) and more efficient cooperation.

55().

A.appearance 

B.disappearance 

C.campaign 

D.ceremony