假设所有导体都没有电阻，当用电器通电时，下列说法正确的是（ ） A．白炽灯仍能发

We are all busy talking about and using the Internet (互联网), but how many of us know the h____小题1:___ of the Internet?

　　Many people are surprised when they find that the I___小题2:_ was set up in the 1960s. At that time, computers were large and e__小题3:___ . Computer networks (网络) didn't work well. If one computer in the network broke down, then the whole network stopped. So a new network system had to be set up. It should be good e__小题4:___ to be used by many different computers. If part of the network was not working, information could be sent through a__小题5:_ part. In this way computer network system would keep on w___小题6:___ all the time.

　　At f_小题7:_ the Internet was only used by the government, but, in the early 1970s, universities, hospitals and banks were allowed to use it too. H小题8:__, computers were still very expensive and the Internet was d__小题9:__ to use. By the start of the 1990s, c__小题10:_ became cheaper and easier to use. Scientists had also developed software that made 'surfing' (浏览) the Internet more convenient.

Today it is easy to get on-line (上网) and it is said that m__小题11:__ of people use the Internet everyday. Sending e-mail is more and more p__小题12:__ among students.

The Internet has now become one of the most important parts of people's life.

集邮品加工完成后，由业务部门填写（）办理入库手续。

A、邮资票品入库通知单

B、邮资票品发货通知单

C、邮资票品转库申请单

D、邮资票品实物单

（）指车轴和车轮的组成结构。

海明威是美国20世纪影响最大的作家之一。1954年获得诺贝尔文学奖金

某车间需要用一台车床和一台铣床加工A、B、C、D四个零件。每个零件都需要先用车床加工，再用铣床加工。车床与铣床加工每个零件所需的工时（包括加工前的准备时间以及加工后的处理时间）如表3所示。若以A、B、C、D零件顺序安排加工，则共需32小时。适当调整零件加工顺序，可使所需总工时最短。在这种最短总工时方案中，零件A在车床上的加工顺序安排在第（8）位，4个零件加工共需（9）小时。

空白处（8）应选择（）

A.1

B.2

C.3

D.4