加强教师职业道德修养有什么意义？

如右，是小明同学利用平板玻璃做为平面镜，用象棋棋子做物体来探究平面镜成像的实验。他沿着玻璃与桌面接触的位置划了一条线C来标记平面镜的位置，然后把棋子A做为物体放在玻璃前面。隔着玻璃观察，发现玻璃后面B的位置出现了两个像，一个比较清晰，一个比较模糊。

请你要根据你的实验经验回答：

1）为什么会出现两个像？

2）如果线C的位置如图所示，那么，为了减小实验误差，把哪个像标为A的像来研究更好一些？为什么？

Everyone knows that the French are romantic, the Italian are fashionable and the Germans are serious. Or do they? Are these just stereotypes or is there really such a thing as national character? And if there is, can it affect how a nation succeed or fail?

At least one group of people is certain that it can. A recent survey of the top 500 entrepreneurs (实业家) in the UK found that 70 percent felt that their efforts were not appreciated by the British public .

Britain is hostile to success, they said. It has a culture of jealousy (嫉妒) . As a result, the survey said, entrepreneurs were “unloved, unwanted and misunderstood”. Jealousy is sometimes known as the “green-eyed monster” and the UK is its home. Scientists at Warwich University in the UK recently tested this idea. They gathered a group of people together and gave each an imaginary amount of money. Some were given a little, others a great deal. Those given a little money were given the chance to destroy the large amounts of money given to others—but at the cost of losing their own. Two thirds of the people tested agreed to do this.

This seems to prove the entrepreneurs were right to complain. But there is also conflicting evidence. The Organization for Economic Cooperation and Development (OECD) recently reported that the UK was now the world’s fourth largest economy .That is not bad for people who are supposed to hate success. People in the UK also work longer hours than anyone else in Europe. So the British people are not lazy , either .

“It’s not really success that the British dislike,” says Carey Cooper, a Professor of management at the University of Manchester Institute of Science and Technology. “It’s people using their success in a way that seems arrogant (傲慢) or unfair or which separates them from their roots .”

Perhaps it is the entrepreneurs who are the problem. They set out to do things in their way. They work long hours. By their own efforts they become millionaires. But instead of being happy they complain that nobody loves them. It hardly seems worth following their example. If they were more friendly, people would like them more. And more people want to be like them.

小题1:What does the underlined “it” in the second paragraph refer to?

A．One group of people

B．A great survey

C．National character

D．A nation小题2:Most entrepreneurs surveyed believe that         

A．they are not popular simply because they are successful

B．the British public are hardworking

C．love of success is Britain’s national character

D．they are considered as “green-eyed monsters”小题3:What does the result of the Warwich University test show?

A．Two thirds of the people tested didn’t love money

B．Most people would rather fail than see others succeed

C．An imaginary amount of money does not attract people

D．Most people are willing to enjoy success with others小题4:The writer of the passage seems to suggest that         .

A．Jealousy is Britain’s national character

B．British entrepreneurs are not fairly treated

C．the scientists are Warwich University did a successful test

D．the British dislike the entrepreneurs because they do not behave properly

下列卵巢交界瘤诊断标准不正确的是（）。

A.细胞呈轻度至中度不典型增生

B.核分裂可见

C.有间质浸润

D.细胞核有异型性

E.卵巢外有种植转移

城市化水平与经济发展关系的曲线表明，经济发展的前期阶段人均GNP增加一定数量（如100美元），需要相应提高的城镇人口比重的幅度应该（）。

A．较大

B．较小

C．与中后期一样

D．没有明显规律

洋地黄中毒引起的心律失常最常见的是（）

A.房性期前收缩

B.室性期前收缩

C.室上性心动过速

D.室性心动过速

E.房室传导阻滞