18. D

19. B

20. F

21. C

22. A

23. G

One of the most interesting places I have ever come to was Hoi An ancient town. Located in Quang Nam, a central region of Vietnam. This place attracts hordes of tourists every year to come and enjoy the wonderful time in Hoi An.

I went to Hoi An about 5 years ago when I graduated from university. At that time, I never thought I could have a wonderful experience here. Hoi An is really a holiday destination for everyone who loves the breathtaking view and the atmosphere. Every house in Hoi An left me with some memories of the past and also reminded everyone of how prosperous the town had.

I visited Hoi An ancient town because I was craving for sampling the local food in here. The cuisine of the central region was so different from other regions. Although I and my buddies had initially planned on which places to visit, I always ended up going off the beaten track there were too many interesting places to explore. The weather was also a factor that made me love this place much. I believed the cool weather of Hoi An would dispel the heat of summer in the southern area.

I really enjoyed my time in Hoi An ancient town. It was a one-of-a-kind experience, and if I have enough money, I will gladly have another trip back to this town.

Tính đạo hàm của hàm số sau:

y=\(\dfrac{x^5}{5}+\sqrt{x}-\dfrac{1}{x}+\dfrac{1}{x^3}-2\)

1. D

6. D

1. D

2. D

3. B

4. D

5. B

V)

1. an

2. some 

3. some

4. some

5. some

6. a

7. some

8. some

VI)

1. some

2. any

3. any

4. some

5. some

6. any

IX)

1. as

2. as

3. as

4. from

5. as

III)
1. play the guitar

2. Draw a portrait 

3. Write a song

4. Work as an actor

5. Take a photo

IV)

a)

1. How many

2. How much

3. How many

4. How much

b)

1. too

2. either

3. either

4. too

5. too

6. too

7. either

8. either

9. too

10. too

2. I'm more kind than my sister
3. My brother is noisier than me

4. I'm tidier than my cousins

5. My mother is cooler than me

6. I'm taller than my younger brother

7. I'm more hardworking than my older sister

a)

b)
- Cuối kì ở giảm phân I tạo thành 2 tế bào con có số lượng NST kép giảm 1 nửa n kép. Còn cuối kì của giảm phân II tạo thành 4 tế bào con có số lượng NST giảm đi một nửa so với tế bào mẹ (n NST)
- Giảm phân II là nguyên nhiễm, GP I là giảm nhiễm