The Kinh people have a population accounting for 90% of all people in Viet Nam. Kinh people live mainly in the delta area and make their living by cultivating wet rice mainly. Just as other ethnic groups have their traditions, the Kinh people have unique traditions and the Kinh language is the Viet-Muong group. These are ceremonies on wedding days, anniversaries, or special occasions with popular and familiar dishes from all over the country. Kinh girls are still gentle and graceful in long dresses or white hats bobbing everywhere. 

phần kết tự viết 

1. A

2. B

3. A

4. B

5. C

6. A

7. A

8. C

9. B

10. B

30 phút = \(^{\dfrac{1}{2}}\)h 

Quãng đường người đó đi được là:

s = v.t = \(\dfrac{1}{2}\).30 = 15km