故障假设／检查表分析的目的是（），考虑工艺或活动中可能导致的事故的类型，定性评价事故

某温度时，卤化银（AgX，X=Cl，Br，I）的3条溶解平衡曲线如图所示，AgCl，AgBr，AgI的Ksp依次减小。已知pAg=－lgc(Ag⁺)，pX=－lgc(X^－)，利用pX－pAg的坐标系可表示出 AgX的溶度积与溶液中的c（Ag⁺）和c（X^－）的相互关系。下列说法错误的是（）

   

A．A线是AgCl，C线是AgI	B．e点表示由过量的KI与AgNO3反应产生AgI沉淀
C．d点是在水中加入足量的AgBr形成的饱和溶液
D．B线一定是AgBr

“限购令”是2011年4月30日北京出台“国十条实施细则”中明确提出的：从5月1日起，北京家庭只能新购一套商品房，购房人在购买房屋时，还需要如实填写一份《家庭成员情况申报表》，如果被发现提供虚假信息骗购住房的，将不予办理房产证。请问限购令是属于宏观调控中的[ ]

A、经济手段

B、行政手段

C、法律手段

D、财政手段

C

Jill lived with her grandma. The old woman was p enough that she could do everything herself at home.
As soon as Jill began to tidy the rooms or wash something, her grandma stopped her and told her to work hard at her lessons. Jill had to listen to her grandma and spent all her time on her study. So she went to college at last.
Now the girl has left college. She did well in all her subjects and easily found work in Mr. Brown’s company. She was sure Mr. Brown would put her in an important position(位置).
On the first day the boss gave her a broom and said, "Your first work is to sweep the offices. "
"What" the girl called out in surprise," I’m a college student, you know. "
"I’m sorry I don’t know that. Here, give me the broom and let me show you!\

Jill had enough time, so ______.

A．she put her heart into her study

B．she had time to rest

C．she could play games

D．she did not learn to do the housework

知识产权的基本特征包括( )。

A．地域性

B．时间性

C．专有性(独占性和排他性)

D．具有人身权和财产权的双重性质

E．科学性

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.

At first computer networks ______.

A. worked quite well
B. were very popular
C. went wrong easily