Viết 1 đoạn văn về lợi ích và bất lợi của thụy điện
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HA
13 tháng 10 2015
Computers have become part of our daily lives.We visit shops,offices,and places of scenic beauty with the help of computers.We pay bills prepared by computers.We read newspapers and magazines which have been produced on computers.We receive letters from and send letters to almost every part of the world with the help of computers.And we can even learn foreign languages on computers.
What make a computer such a miraculous device?Each time you turn it on,with appropriate hardware and software,it is capable of doing almost anything you ask it to.It is calculating machine which speeds up calculation: it can add,subtract,multiply,and divide with lightning speed and perfect accuracy.
It is an electronic storage device which manages large collections of data.It is a magical typewriter which allows you to type and print any kind of document_letters,memos or requests for leave.It is a personal communicator which help you to interact with other computer and with people around the world.And if you **** entertainment,you can relax by playing computer games or listening to computer-played music.
LS
4 tháng 4 2022
Solar energy makes us have solar electricity, light to live. If you don't have solar energy, you will have to use electricity, but using electricity will cause a fire, so solar energy is very good.
CT
5 tháng 5 2022
Energy is very important in our daily life. We use energy for almost everything we do. However energy is limited. We should do the following things to save energy. Firstly, we should use electricity more efficiently. Secondly, we had better reduce our electricity bills. Besides, it’s necessary to turn off the lights when leaving a room or before going to bed to save energy. Moreover, we ought to reduce the use of fossil fuels. In short, we should try our best to save energy for our future and for our planet’s future.
PA
1
26 tháng 9 2021
I find playing online games very interesting. It can support me to feel relaxative after everyday after tired time of learning at school. I usually like to play online chess. It is exciting and challenging. It also help me to make friends online. It helps me to think over everything before acting. However, I always limit my time of playing online games. Because I think playing too much online games makes me tired. My eyes are often soring. My mother always reminds me of learning hard, so I know what is the most important to me. Playing online games only helps me to relax a little. So I advise you to working hard at school, and just spend a little time playing online games, although how much you like it.
D
22 tháng 4 2021
Television is a breakthrough invention of human, however, it has both advantages and drawbacks. First, take a look at its benefits. TV is a huge source of information with a wide variety news and instruction channels. You now can learn through TV and update news about what is happening in the world. Television also provides a huge knowledge of many fields including natural science, social science,… Besides, Television is a common type of entertainment thanks to a wide range of music TV programs, cartoons, reality shows or funny programs. On the other hand, television has some outstanding disadvantages. In fact, many people become addicted to Television and turn it on all day. Especially to children, they don’t want to go out to play with friends or focus on study. They just sk their eyes to the screen without wanting to leave. Some programs even contain violent and criminal content, which influence negatively on children. Also, spending hours watching TV is harmful to your eyesight and wasting your time. With that amount of time, you can do something more beneficial such as playing sports, doing physical exercises or learning new skills. In summary, nowadays, television is indispensable and its benefits outweigh its drawbacks.
D
22 tháng 4 2021
Energy is very important in our daily life. We use energy for almost everything we do. However energy is limited. We should do the following things to save energy. Firstly, we should use electricity more efficiently. Secondly, we had better reduce our electricity bills. Besides, it’s necessary to turn off the lights when leaving a room or before going to bed to save energy. Moreover, we ought to reduce the use of fossil fuels. In short, we should try our best to save energy for our future and for our planet’s future.
26 tháng 12 2020
Ideally, what I’d like to do is helping other people, so I’m volunteering at an old folks’ home.
I had been longing for a meaningful experience, and I finally found it there.
What I really loved about going there was talking about all sorts of things with the people I met.
Some had traveled a lot and others had spent their whole lives in my little town. Even so, all of them had gone on such incredible journeys, which included: raising kids, learning skills, and overcoming challenges.
To be honest, I’ve traveled to the far most corners of the world and been on the most incredible journeys, through the stories that my friends have told me, both young and old. It’s both peaceful and fulfilling and I wouldn’t trade it for anything, neither would my friends because they know I’ll always be here for them when they return…
FM
3
AL
5 tháng 5 2021
The world is currently very developed, which means that technology is very evolving, especially smartphone. And it brings a lot of benefits, I of course agree. Because it's so useful. Smartphone works remotely, even when you're in another part of the world. You can communicate verbally, video, audio and exchange other media. All websites, applications and software have been created to help users socialize. Social media, texting, texting, laptops, tablets, and cell phones mean no one needs to feel isolated in the digital world. Users can be regularly updated with news about local events and social developments. We can also learn through technology. Anyone with access to the internet today can access a huge amount of the world's knowledge through the web. Alternatively, lessons and courses can now be offered virtually online. Online social media or playing computer and mobile games is becoming more and more popular. Traditional media also developed, as television and broadcasting were digitized along with radio. It has many benefits, but it also has harmful effects. Nowadays, there are a lot of young people who are interacting too much with internet devices, and can easily watch bad programs, programs like those are not good for them. However, Smartphone is also a lot of benefits, is an important part of our life
5 tháng 5 2021
1. Bảo quản vắc xin
Đây là một yếu tố đặt lên hàng đầu bởi vắc xin luôn đòi hỏi phải bảo quản ở một điều kiện nghiêm ngặt, đặc biệt là các loại vắc xin nhược độc. Mỗi loại vắc xin đều có một khoảng nhiệt độ bảo quản thích hợp, đối với các loại vắc xin virus ở nhiệt độ từ 2 – 8°C, các loại vắc xin vi khuẩn từ 5 – 150C. Nếu nhiệt độ bảo quản vắc-xin nằm ngoài khoảng nhiệt độ bảo quản, hoặc để vắc xin bảo quản ở ngăn đá sẽ làm mất tác dụng của vắc xin.
Ngoài ra, bà con cũng cần chú ý việc bảo quản vắc xin khi vận chuyển, nếu ở xa nơi bán vắc xin thì khi đi mua nhất thiết có hộp xốp, phích đá để bảo quản; nếu mua gần thì bảo quản bằng túi nilông tối màu có giấy bọc. Khi vận chuyển vắc xin cần bao gói kỹ, tránh hiện tượng va đập, tránh được vắc xin tiếp xúc trực tiếp với đá lạnh, đặc biệt không cho ánh nắng trực tiếp chiếu vào vắc xin để đảm bảo chất lượng và hiệu quả phòng bệnh của vắc xin.
2. Sử dụng vắc xin
Nếu khâu bảo quản tốt song chúng ta sử dụng vắc xin không đúng kỹ thuật thì hiệu quả cũng sẽ thấp. Khi sử dụng vắc xin chúng ta cần chú ý các yếu tố sau:
- Cần đọc kỹ hướng dẫn sử dụng vắc xin trước khi dùng, nếu không rõ thì hỏi thêm ý kiến của bác sĩ thú y.
- Khi dùng phải kiểm tra lọ vắc xin bằng mắt thường xem màu sắc, độ vẩn có gì khác thường (ví dụ: không dùng vắc xin bị đổi màu, vẩn đục).
- Không được tiêm vắc xin cho động vật đang mắc bệnh, nghi mắc bệnh, động vật quá gầy yếu, quá non, con mẹ mới đẻ, động vật mới thiến chưa lành vết thương, những con mang thai ở kỳ cuối.
- Dùng vắc xin đúng liều lượng, đúng vị trí, đúng lứa tuổi.
- Xi lanh, kim tiêm phải đảm bảo tiệt trùng. Biện pháp tốt nhất là luộc sôi hoặc hấp, để nguội dụng cụ trước khi sử dụng (chú ý không nên dùng cồn để sát trùng dụng cụ).
- Pha vắc xin đúng chỉ dẫn, trước khi sử dụng phải lắc kỹ lọ vắc xin.
- Vắc xin pha xong dùng ngay, không để quá 2-3 giờ sau khi pha, không cầm lâu trong tay; nếu thừa phải hủy, không được dùng cho ngày hôm sau; không vứt bừa bãi chai lọ, kim tiêm.
- Sau khi tiêm vắc xin, cần theo dõi vật nuôi để kịp thời phát hiện các trường hợp gia súc, gia cầm phản ứng sau khi tiêm để có biện pháp can thiệp.
3. Một số bệnh cần chú ý tiêm phòng cho vật nuôi
- Đối với trâu bò: tiêm phòng bệnh tụ huyết trùng, lở mồm long móng.
- Đối với lợn: cần được tiêm phòng đầy đủ 04 bệnh đỏ (tụ huyết trùng, phó thương hàn, đóng dấu lợn, dịch tả lợn), lở mồm long móng.
- Đối với đàn gà: tiêm vắc xin Newcastle, Gumboro, Cúm gia cầm.
- Đối với đàn thủy cầm: tiêm Cúm gia cầm, Dịch tả vịt.
HN
0
T
1
22 tháng 5 2021
The world today is very developed, which means that science and technology are also very developed, they play an important part in our lives today, they have many advantages. Because they are very useful, and especially for our students. By technology, we can look up learning materials, helping us to study better. And we can also use technology to communicate with teachers more easily, especially during a pandemic like this. And now, it's even more useful to our students than learning through television, to ensure that knowledge is not lost. You can already see how great Technology is for our students, though it still has its downsides. On the Internet, there are still some bad websites, which will affect the development of students. Even so, Science and Technology are still necessary things for our life
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