下面哪一种方法不适于消除氧波() A.待测溶液是中性或碱性介质时加入亚硫酸钠 B.溶

题型:单项选择题 A1型题

问题:

下面哪一种方法不适于消除氧波()

A.待测溶液是中性或碱性介质时加入亚硫酸钠

B.溶液中通入惰性气体氮

C.待测溶液是微酸性或碱性介质时加入维生素C

D.待测溶液是碱性介质时通入CO2

考点:广西公共卫生住院医师规范化培训卫生化学卫生化学题库
题型:单项选择题 A1型题

We are all busy talking about and using the Internet, but how many of us know the history of the Internet? Many people are surprised when they find that the Internet was set up in the 1960s. At that time, computers were large and expensive. Computer networks 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 enough to be used by many different computers. If 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, hospitals and banks were allowed to use it, too. However, computers were still very expensive and the Internet was difficult to use. By the start of 1990s, computers became cheaper and easier to use. Scientists had also developed software that made "surfing" the Internet easier. Today it is easy to get on-line and it is said that millions of people use the Internet every day. Sending e-mail is more and more popular among young people. The Internet has now become one of the most important parts of people's life.

小题1:How long has the Internet been used?

A.For over 10 years.

B.For over 20 years.

C.For over 40 years.

D.For over 60 years.小题2:What would happen when one computer in the network broke down after the new network system was set up?

A.The other computers would wait.

B.The other computers would still work.

C.Some of the others still worked.

D.The other computers wouldn't work.小题3:Which of the following used the Internet first?

A.Hospitals

B.Universities

C.Banks

D.The government小题4:What is true about computers in the 1990s?

A.They became cheaper and easier to use.

B.They became larger and larger.

C.People couldn't buy them anywhere.

D.People could get information only from them.小题5:What can we infer from the last sentence?

A.People will die without the Internet.

B.All people should set up their own network.

C.People live easily without the Internet.

D.People will more and more depend on the Internet.

题型:单项选择题 A1型题

以下哪项属于社会工作社会层面的目标?()

A.解决问题

B.缓解困难

C.促进社会公正

D.促进发展

题型:单项选择题 A1型题

已知电极反应Cu2++2e-=Cu的ψθ为0.347V,则反应2Cu-4e-=2Cu2+的ψθ值为()。

A.-0.694V

B.+0.694V

C.-0.347V

D+0.347V

题型:单项选择题 A1型题

人民法院审理行政案件,判决维持的条件是( )。

A.证据确凿

B.适用法律法规正确

C.符合法定程序

D.符合惯例

题型:单项选择题 A1型题

硬胶囊的制备一般分为()的制备和()的制备、填充、封口等工艺过程。

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