试题与答案

小接地电流系统单相接地故障时,非故障线路的另序电流超前零序电压()。A、90° B、

题型:单项选择题

题目:

小接地电流系统单相接地故障时,非故障线路的另序电流超前零序电压()。

A、90°

B、180°

答案:

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题型:阅读理解

阅读理解

      Most people want to be happy, but few know how to find happiness. Money and success alone do

not bring lasting happiness. Aristotle, a Greek thinker, said, " Happiness depends upon ourselves." In

other words, we make our own happiness. Here are a few suggestions to help you be happier.

     The first secret of happiness is to enjoy the simple things in life. Too often, we spend so much time

thinking about future - for example, getting into college or getting a good job - that we fail to enjoy the

present. You should enjoy life's simple pleasures, such as reading a good book, listening to your favorite

music, or spending time with close friends. People who have several close friends often live happier and

healthier lives.

      Another secret to living a happy life is to be active, and have hobbies where you forget your problems and time. Many people experience this dancing, or playing a sport, such as swimming. You can forget

about your problems, and only think about the activity. Finally, many people find happiness in helping

others. Studies show that people feel good when they spend their time helping others. If you want to feel

happier, do good things for someone. You can help a friend with his or her studies, go shopping to buy

food for an elderly person, or simply help out around the house by washing the dishes.

1. The best title of the passage is ___________.

A. Money Make You Happy                

B. The Secrets of Happiness

C. Ideas for Helping Other People to Be Happy  

D. Good Friends Make You Happy

2. The writer thinks that _____________

A. everyone knows how to live a happier life

B. it's wrong to spend time on work

C. hobbies take up too much time

D. doing good things for someone can make you happier.

3. Which of the following is not mentioned in the passage?

A. Reading a good book                

B. Traveling to a foreign country

C. Playing a sport                      

D. Spending time with close friends

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