搜题请搜索小程序“爱下问搜题”
问题 单项选择题

对于工程建设项目货物招标项目，根据《工程建设项目货物招标投标办法》规定，技术简单或技术规格、性能、制作工艺要求统一的货物，一般采用（）进行评标。

A.经评审的最低投标价法

B.综合评估法

C.性价比法

D.专家调查法

答案

参考答案：A

单项选择题

恩氟烷主要在下列哪个部位代谢（）

A.肝细胞线粒体内

B.肝细胞微粒体内

C.肝细胞质内

D.肾小管上皮细胞内

E.红细胞内
查看答案
单项选择题

Many people are surprised when they find the Internet(因特网)was set up in the 1960s. At that time, computers were large and expensive. 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 (系统) had to be set up. It should be good enough to be used by many different computers. If a part of the network was not working, information could be sent through another part. In this way computer network system would keep on working all the time.
At first the Internet was only used by the government, but in the early 1970s,universities(大学) ,hospitals and banks were allowed(允许) to use it too. However, computers were still very expensive and the Internet was difficult to use. By the start of the 1990s, computers became cheaper and easier to use.
Today it is easy to get on-line(上网) and it is said that millions of people use the Internet every day. Sending e-mail is more and more popular among students.
The Internet has now become one of the most important parts of people’s life.

The Internet has a history of ______ years.

A. less than 30

B. about 40

C. about 20
查看答案