1. (2021·夹江模拟) 阅读下列短文，从每题所给的几个选项中，选出最佳选项。

From November 1st to December 10th in 2020, China started its seventh national population census（人口普查）. 7 million census takers have asked each family about their name, gender（性别）, age, education, employment （职业）and so on. This census is different from the ones in the past. For the first time, people can use smartphones and other digital tools to record their information.

China has a national population census every ten years. The first one was done in1953. At that time, there were about 600 million people in China. But China's population has boomed. It was about 1.37 billion in 2010.

The 2020's national population census include all residents(居民) of China. But Chinese citizens who had settled（定居）abroad and foreign citizens who were staying in China on either business or tourist visas(签证) were not counted.

"The census is very important for every citizen," said Ning Jizhe, director of the NBS. "It will help improve infrastructure(基础建设) and public services." For example, if census results show that there are many children living in a particular area, the government will know that it should build more school there.

1. （1） The 2020's national population census in China doesn't mention people's ________.

   A . name B . transport C . education D . age
3. （2） The fifth national population census in China is done ________.

   A . in1953 B . in 1964 C . in 2000 D . in 2010
5. （3） What does the underlined word "boomed" in paragraph2 mean in Chinese?

   A . 下降 B . 包括 C . 测量 D . 增长
7. （4） ________were in the 2020's national population census.

   A . Chinese residents travelling abroad B . People living in other countries C . Foreigners staying in China on business visas D . Foreign tourists staying in China for holidays
9. （5） The national population census is important because ________.

   A . people can use the digital tools to record the information B . the government will build more schools C . it is helpful to improve infrastructure and public services D . the population in the cities of China grows fast