It will probably serve as a flying taxi, a cargo carrier and an ambulance.
Because hydrogen fuel cells are lighter and they are less polluted to the environment.
The technology is interesting and useful.(答案不唯一)
The Internet has made communication much easier. It has become one of the most important
parts in people's daily life.
Many students use the Internet to study, send emails and search for information. But many
others are crazy about chatting online or playing computer games. It is bad for their health. As
students, we should know that study comes first. And we should spend more time doing sports
instead of playing computer games.
In a word, we should use the Internet wisely.
|
|
