C. To protect ecosystems and biodiversity.D. To provide leisure areas for the public. 相关知识点: 试题来源: 解析 C 建立国家公园的主要目的是保护生态系统和生物多样性。选项A、B和D虽然可能是国家公园的次要目的或附带效果,但并非主要目的。因此,正确答案是C。
What is the purpose of the passage? A. To point out the importance of public libraries. B. To encourage people to work in public libraries. C. To introduce the improved services of public libraries. D. To call for the modernization of public library systems. 相关知识点: ...
This is a public service announcement from Department of Safety Boating Program and this station.[解析] 选项A正确。选项B错误,“学会求生”这个话题太过宽泛。选项C错误,这不是播报的主要目的。选项D错误,播报中提到船舶的安全准备,但也不是主要目的。2、[解析] 选项A和D只是推荐做法。选项B正确。选项C...
Sweden is also a world leader in turning food waste into eco-friendly biogas. It has made food waste collection compulsory beginning in 2021. There is a food waste biogas plant, which allows biogas to be used to run public buses and to heat apartment buildings. Sweden now wants to deal ...
It is important to learn business English if you are going to be successful in another country where English is the primary language.It will also be a great idea to practice speaking and writing in business English.If a university offers a course on business English , it will be a good id...
. What's the purpose of the text? A. To inform the public of an event. B. To explain a phenomenon C. To argue over a social issue. D. To recommend a book. 相关知识点: 试题来源: 解析 ert what's the purpose of the text? A. To inform the public of an event. B. To explai...
解析 23. What is the main purpose of the passage? A. To publicize online public lectures. B. To compare events of studying science. C. To stress the importance of space exploration. D. To expand people's knowledge about universe
Trash is collected only when the bins are full and bus stop signs show exactly when the next bus is coming. The public parks are watered only when the soil gets dry. All this is made possible by 20, 000 sensors installed on buildings, street posts and even buses. They are part of ...
Once your experiment is done, you will be able to go back to your hypothesis and see if it is correct. Remember, it's not bad if your hypothesis was wrong. The main thing is that you've learned something from your experiment, and hopefully you had some fun doing it. 语篇解读:对人...
根据第一段中的"The aging of the population will affect(影响)American society in many ways一education,medicine,and business.Quietly,the graying of America has made us a very different society一one in which people have a quite different idea of what kind of behavior is suitable(合适的)at ...