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Bạn điền thông tin vào biểu mẫu này nha: https://forms.gle/U1zKa4DXRdQqBNqT7! Ngày khai giảng và 29/7/2021 nhé!
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1/ Hydrocarbon is the most widely popular compound of hydrogen and carbon that exists in nature.
2/ To obtain to derivatives of benzene, carbon atoms can be replaced by other groups of substances.
3/ Raw materials are used for production and to make products.
4/ In chemical industry, the distinction between selling products and the last product is quite difficult.
5/Chemical compound is separated into 2 types: Inorganic compound and Organic compound.
I believe relax activities th best for youth are group activities. They can play a team sport or join a hobby even a volunteer. The first, youth like feeling they are in group. The second,a part of group help youth make friends. More, we make friends with people have the same hobby. For that reasons, I think group actvivtu are the best for youth.
Dịch
Hi Nam,
How are you?
Long time not talk to you.
There is a new park in my neighbourhood so I have a new leisure activity as jogging in the park besides playing computer games, watching TV. I enjoy playing computer games most, hihi. However I also like to jog in the park. I also help my sister do housework.
How about you?
Best,
Ngan
Hi, I'm Linh. And today, I want to share everyone some of my hobbies and habits. Of all the four seasons, autumn is my favorite season. For me, autumn is very special, because it is the time of the school year, the aspirations, dreams. I return to school with a new excitement, determination and yearning for school with full of energy. I love autumn. I do not know exactly when but it gives me a sense of strange peace. In the =>x autumn in the North, cool winds bring the scent of new paddy fields or guava flavors in the garden. These are also the famous features of my hometown that I love the =>x most. Later, I will probably never forget the autumn that have been associated with my youth. Above all, autumn has extremely pleasant weather. Yes, I love the cool and mild weather of autumn. It would be great if in the weather, the comfortable atmosphere of autumn, I can sit and watch TV with family or friends. My favorite TV shows are thrilling/animation movies and music on VTV and surf the Internet. On weekends, I often do sports and play chess with my father watch movies with my family=>lặp . In addition, I also take time for myself =>I also spend time for a lot of interesting activites such as reading books, listening to music and completing some exercises. It can be said that this is the happiest time for me. Thank you for listening to my share.
Genetically modified mosquitoes drop Zika virus can cause many consequences
The release of genetically modified mosquitoes into the wild to prevent disease spread by mosquitoes, such as Zika virus, malaria, dengue fever is premature and could cause unintended consequences.
This is the warning of the US scientists released on 9/6.
Professor James Collins of Arizona State University, and a co-chairman of the Commission of the national academy of science, engineering and medicine, affirmed should be cautious and conduct more studies of the consequences of social, scientific as well as the release of genetically modified organisms into the environment.
Commission warns on genetically modified technology could cause harmful effects such as reducing the number of other insects, or even more dangerous is the creation of new species capable of rapid spread of disease than.
The researchers called for further studies conducted, the tests in stages and closer collaboration between scientists.
Mid-autumn festival is held on the 14th and 15th lunar month with many activities on this day such as children performing lantern dancing, etc. Mid-Autumn Festival is also considered as a harvest festival, and the place to have fun is Hoi An, where you can watch many performances and lanterns on the street.