bn zô vndoc.com là có hết thui àk!!!

Hello, everyone! I am Huyen. I would like to present to you about my favorite TV program. My favorite TV program is Hello Jadoo - a famous program. I like this program because it is very funny and entertaining. It's on Disney Channel at 5pm from Tuesday to Saturday every week. I always watch it . This program is about a cute girl, funny and intelligent but quite lazy and friends good-hearted, genial of jadoo. Through cartoon, I developed communication skills, perseverance and life skills. I wish cartoon will premiere viewers or more episodes and more meaningful.

Chuc ban hoc tot!!!

Cho các amin có công thức cấu tạo sau:

(1) CH3 - CH2 - NH2

(2) CH3 - CH2 - CH2 -NH2

(3)CH3 - NH - CH3

Amin nào cùng bậc với ancol isopropylic?

A. (3). 

B. (4). 

C. (1). 

D. (2)