大型群众性活动场地的（）应当向活动的承办单位提供符合消防安全要求的建筑物、场所和场地

My boy pretended to do his homework when I entered his room.

The Mayan Indians lived in Mexico for thousands of years. The Maya were so bright that they achieved a lot. They had farms, temples and cities with many buildings. They knew much about nature and the world around them. This knowledge helped them to live a better life than most people of that time.

In ancient Mexico there were many small clearings in the forest. In each clearing was a village with fields of crops around it. The Maya planted seeds after they cleared the land. A farmer was able to grow crops that produced for several people. But not every Maya had to be a farmer. Some were builders or priests (祭司).

The Maya believed in many gods. They built large temples to honor them. Skillful workers built cities around these temples. It was difficult because they had to carry all of the building materials themselves. Today, many of these ancient Mayan cities and temples are still standing.

Although the Maya worked hard to build the beautiful cities, very few of them lived in them. Usually, only the priests lived in the cities. The other people lived in small villages in the forests. Their houses were much simpler. Most Maya lived a simple life close to nature.

Measuring time correctly was important to the Maya, so Mayan priests made a system to keep track of time. They wrote numbers as dots ( … ) and bars ( — ). They also made a calendar (日历). The year was divided into 18 months of 20 days each with five days left over.

Around the year 800, the Maya left their villages and beautiful cities, never to return. No one knows why this happened. They may have died from a deadly disease. They may have left because the soil could no longer grow crops. The lost secrets of the Maya are still beyond the reach of modern people. They are still one of our greatest mysteries (神秘).

小题1:The Maya lived better than most people of their times because _____.

A．they had skillful workers

B．they believed in many gods

C．they knew better about nature

D．they could measure time correctly小题2:It can be inferred from the passage that _____.

A．the calendar was first invented by the ancient Maya

B．the ancient Mayan cities and temples were well built

C．the ancient Mayan people led a happy life in the cities

D．the priests were not highly respected by the ancient Maya小题3:The underlined word “they” in the passage refers to _____.

A．the Mayan people

B．the Mayan villages

C．the Mayan cities

D．the lost secrets of the Maya小题4:Which of the following would be the best title for this passage?

A．The Life of the Maya

B．The Cities of the Maya

C．The Mystery of the Maya

D．The Belief of the Maya

如何进行引气渗漏测试？

A、在控制组件上按下测试按钮

B、MASTER TEST电门放BLEED位

C、将引气电门放测试位

脚手板搭设要求？