mik cần gấp ạ vote 5 sao cảm ơn

Câu 1: Giải thích cơ sở khoa học của các biện pháp bảo quản nông sản, thực phẩm phổ biến hiện nay. Câu 2: Ứng dụng việc sử dụng nguồn ánh sáng nhân tạo ở cây trồng nhằm nâng cao năng suất cây trồng. Giúp em 2 câu trên với ạ

a) Cho A = 5 + 3 mũ 2 + 3 mũ 3 + 3 mũ 4 + .... + 3 mũ 2018 Tìm số tự nhiên n , biết 2A - 1 = 3 mũ n

1. The tests ( do ) yesterday. 2. She started working here in 2009 ---> She has.... 3. Chau has made some cakes for her friends recently ----> Some cakes .............

Câu 1 : 4x ² - 9 - x ( 4x - 3 )

Ai giúp mình làm bài speaking trả lời các câu hỏi sau vs What type of family do you live in?(nuclear or entende What do you like and dislike about your type of family What are the conflicts between you and family Dừng trả lời cao siêu quá nha :)

Chuẩn bị bài luyện nói: Trong vai Vũ Nương kể lại chuyện người con gái Nam Xương Giúp mn đi,mai nộp đó!

can remember many happy events of my life and out of those, I would like to talk about the event that I can still remember vividly. It (1-be)_________ indeed an exhilarating event and that was regarding my success in the board final exam. The moment I (2-hear)__________ that I had been awarded a scholarship for my performance in the board exam, I (3-become)___________ the happiest man in the world. This (4-be)________ truly a felicitous moment for me as it is something I was looking forward to very eagerly and the news (5-make)_________ my parents quite happy and proud. I would like to thank you for letting me talk about this event. I (6-wait) ___________almost a month with great anxiety for my result. I (7-start)______________ speculating so many things and many of them were negative. I could hardly stop thinking about my upcoming result during this period. The result was highly important and my college admission was dependent on it. I could not sleep well the night before the result publishing day. I think it is common for students to worry about their results, especially for important exams, and I was familiar with this type of concern. However, I have to admit that I had been more worried about it than other exam results I can remember. The result was published at around 11.00 am and I (8-find)_________ that I did exceptionally well. I was so relieved and happy that I was on cloud nine. Then I hurriedly returned home and gave the news to my parents. They were very happy. My father, who barely expresses his emotions (9-be)__________ also very pleased, and my mother called a few of our relatives to share the good news. I felt excited, happy and relieved. At that time I was about 15 years old. It (10-happen)__________ in our hometown called (... say the name of your hometown...). It was so pleasant an event that I still remember every bit of it.

Bài 4 SGK tiếng anh 6 trang 32! làm giùm mình với,thanks

Kinh tuyến, vĩ tuyến là gì ???????