该图中心为极点，外圆为50°纬线图，图中数字表示经度度数，P、Q之间和M、N之间为陆

2011年5月，远大领衔的空气净化器价格出现大幅上涨。其中一款商用空气净化器售价高达40000多元，就连最便宜的也卖到了近3000元。相对昂贵的价格让不少消费者望而却步，一些尚在观望中的消费者在涨价后直接放弃了选购计划。这说明 [ ]

A．商品价格的变化会刺激需求

B．商品价格的变化会影响人们的购买力

C．供求影响商品的价格

D．收入是消费的前提和基础

Everyone has good days and bad days.

Sometimes, you feel as if you’re on top of the world. But occasionally you feel horrible, and you lose things and you cannot focus on your schoolwork.

For more than 20 years, scientists have suggested that high self-esteem (自尊) is the key to success. Now, new research shows that focusing just on building self-esteem may not be helpful. In some cases, having high self-esteem can bring bad results if it makes you less likeable or more upset when you fail at something.

“Forget about self-esteem,” says Jennifer Crocker, a psychologist (心理学家) at the University of Michigan, US. “It’s not the important thing.”

Feeling good

Crocker’s advice may sound a bit strange because it is good to feel good about yourself.

Studies show that people with high self-esteem are less likely to be depressed, anxious, shy, or lonely than those with low self-esteem.

But, after reviewing about 18,000 studies on self-esteem, Roy Baumeister, a psychologist at Florida State University, has found that building up your self-esteem will not necessarily make you a better person.

He believes that violent and wicked people often have the highest self-esteem of all. He also said: “There’s no evidence that kids with high self-esteem do better in school.”

Problems

All types of people have problems. People with high self-esteem can have big egos (自我) that can make them less likeable to their peers(同龄人), said Kathleen Vohs, a psychology professor at Columbia University.

People with high self-esteem tend to think more of themselves, Vohs says. People with low self-esteem are more likely to rely on their friends when they need help.

What to do

Researchers say it is best to listen to and support other people. Find positive ways to contribute to society. If you fail at something try to learn from the experience. “The best therapy (药方) is to recognize your faults,” Vohs says. “It’s OK to say, ‘I’m not so good at that,’ and then move on.”

小题1:The new research comes to the conclusion that high self-esteem ________.

A．is not important at all

B．has taken on a different meaning

C．may not be the key to success

D．does not help you do better at school小题2:One of the conclusions of the new research is that ________.

A．feeling good about oneself doesn’t mean you lead a happier life

B．people with high esteem usually do not seek other’s help

C．people with high esteem tend to be proud

D．people with low esteem are often more popular小题3:The underlined part “a better person” in the passage probably means a person who is ________.

A．helpful and supportive

B．gentle and modest

C．likable and successful

D．friendly and kind小题4:From the text, we can infer the best therapy mentioned in the last paragraph is mainly for people ________.

A．with high self-esteem

B．with low self-esteem

C．of all kinds

D．who are focusing on building self-esteem

男性，40岁，因室内着火大声呼救，被烧伤头、面、颈、背、臀，部分为深Ⅱ度烧伤，部分为Ⅲ度烧伤。

为保持创面干燥，防止感染，选用长期最佳位置是（）

A.半卧

B.侧卧

C.俯卧

D.仰卧

E.睡翻身床，定期翻身

火灾自动报警系统竣工时，施工单位应提交下列文件：

一、（）图；

二、（）变更文字记录；

三、（）记录（包括隐避工程验收记录）；

四、（）记录（包括绝缘电阻、接地电阻的测试记录）；

五、（）报告。

在锤片式粉碎机中，齿板的辅助粉碎作用主要对（）物料作用明显。