viết đoạn văn từ 80-90 từ về lợi ích và tác hại của internet
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MH
30 tháng 10 2021
Internet – one of the greatest innovations of our times – has become a familiar term in our daily life. Besides its undeniable positive influences, it is necessary to acknowledge the disadvantages it brings. The most predominant drawback that people need to consider is security issues. As the Internet is widely used in different aspects of life such as business or education, users’ privacy can run a risk of invasion by hackers, causing their personal information to be leaked. Furthermore, in the virtual world where people are connected with each other and access is unlimited, it is a good opportunity for scammers and cyber criminals to approach their “preys”. Another bad side of this tool is the spread of false or inappropriate information. Every day or even every hour, a number of information is freely uploaded and shared without any restrictions.As a result, many people exploit this to distribute fake news for their own advantage, which can have a negative impact on a large scale. Moreover, the availability of entertainment on the Internet also makes unhealthy materials more accessible than ever, leading to a rise in behavioral problems, especially juvenile delinquency. Last but not least, Internet can be seen as additive. Nowadays, people are likely to spend hours surfing the web, it can be at class, it can be at work or at lunch, anywhere and at any time. Sometimes it may become a distraction, causing them to work ineffectively. Watching your favorite film or finishing work – that’s definitely a hard question. Besides, some people are so addicted that they live in the virtual world more than in the real world. They tend to express their feelings and opinions freely on social network while being rather reserved in the outside world and lacking interaction with others around. To put it briefly, much as the Internet offers a wide range of benefits in different fields, it has the cost that needs careful consideration.
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.
PA
1
N
1 tháng 10 2021
Refer:
Modern society is constantly developing, and the appearance of the Internet has opened up a whole new era of access and sharing of information. This brings a tremendous reform and benefits to all humanity. In our lives there are innumerable questions that need to be answered, and the Internet was born as a useful tool to help us solve those questions. Searching for information in the past has cost humanity a lot of time and effort, and not everyone had patience to turn the pages one by one to find the information they needed. However, our lives have changed tremendously since the arrival of the Internet, and the search of general information on the Internet has not consumed us much more than mouse clicks and keyboard typing. This is where most basic and specialist information is gathered from the majority of occupations and fields in our life. There are countless websites that contain useful information for research and study, and Wikipedia is now considered to be the most complete and accurate encyclopedia. Searching the Internet is simple, but we should also be careful in getting that information. Not all knowledge on the Internet is accurate and complete, so we need to compare information from many different sources before actually using any of them for our purposes. The Internet is an infinite ocean of knowledge, and we can learn countless things if we know how to use it properly.
MT
2
HD
0
AL
14 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
Bạn tham khảo nha:
Modern society is constantly developing, and the appearance of the Internet has opened up a whole new era of access and sharing of information. This brings a tremendous reform and benefits to all humanity. In our lives there are innumerable questions that need to be answered, and the Internet was born as a useful tool to help us solve those questions. Searching for information in the past has cost humanity a lot of time and effort, and not everyone had patience to turn the pages one by one to find the information they needed. However, our lives have changed tremendously since the arrival of the Internet, and the search of general information on the Internet has not consumed us much more than mouse clicks and keyboard typing. This is where most basic and specialist information is gathered from the majority of occupations and fields in our life. There are countless websites that contain useful information for research and study, and Wikipedia is now considered to be the most complete and accurate encyclopedia. Searching the Internet is simple, but we should also be careful in getting that information. Not all knowledge on the Internet is accurate and complete, so we need to compare information from many different sources before actually using any of them for our purposes. The Internet is an infinite ocean of knowledge, and we can learn countless things if we know how to use it properly.