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31 tháng 3 2021

1 He has visited Ha Noi for 10 years

2 London is the biggest city in the world

3 Mai likes playing football because it is so funny

4 The winner will be .....

31 tháng 3 2021

1. He has visited HN for 10 years

2. London is the biggest city in the world.

3. Because It is so funny , Mai likes playing football

4.  the winner will be Ha

7 tháng 5 2017

1 the center hospital / My sister / as works / in / a nurse .

MY SISTER WORKS AS A NURSE IN THE CENTER HOSPITAL.

2 by train / home / they will / come / back / After the holiday .

AFTER THE HOLIDAY, THEY WILL COME BACK HOME BY TRAIN.

3 Collecting Chinese Doll.....IS.... Mike's interest .

4 all evening / Many / old people / sit and watch TV / just .

MANY OLD PEOPLE JUST SIT AND WATCH TV ALL EVENING.

5 Football is one of the most famous ...SPORTS.... in the world .

7 tháng 5 2017

1 the center hospital / My sister / as works / in / a nurse .

=> My sister works as a nurse in the centre hospital

2 by train / home / they will / come / back / After the holiday .

=> They will come back home by train after the holiday

3 Collecting Chinese Doll is Mike's interest.

4 all evening / Many / old people / sit and watch TV / just .

=> Many old people just sit and watch TV all evening .

5 Football is one of the most famous sport in the world .

17 tháng 2 2020

1. Chắc là đổi từ foodball sang soccer á.

2. Last week, I went to the museum with my friend.

3. He couldn't sleep so he turn on the TV to watch sme programs.

4. Sửa wich thành which

17 tháng 2 2020

Fix

Each sentence has a mistake. Find the mistake and correct them.

1) Tony is a good foodball player. He plays football very good. => well

3) He couldn't sleep so he turn off => turned on the TV to watch some programs.

4) Neil Armstrong, wich => who first walked on the moon lived in the USA.

11 tháng 8 2017

1. Nam said that he.........was doing....... (do) his homework then.

2. Chung asked me..... .not to play.... ..(not play) in the class.

3. Huong told me...........to listen....(listen) to him carefully.

4.She used.....to walk.........(walk) to school when she........was..... (be) ten.

5. My mother.........did... (do) the housework two hours ago.

6. They will participate in.........playing...... (play) sports to keep fit.

7. Mai hates........watching.........(watch) TV but she likes. ........learning . .......(learn) English.

8. My mother is always busy.......working........(work).

9. Would you like........to meet........ (meet) my mother?

10. If you learn hard, you........will get..... (get) good grades.

11 tháng 8 2017

1. Nam said that he..........was doing...... (do) his homework then.

2. Chung asked me..... .not to play.... ..(not play) in the class.

3. Huong told me........to listen.......(listen) to him carefully.

4.She used........to walk........(walk) to school when she.......was...... (be) ten.

5. My mother.......did..... (do) the housework two hours ago.

6. They will participate in.......playing........ (play) sports to keep fit.

7. Mai hates.......watching..........(watch) TV but she likes. .......learning........(learn) English.

8. My mother is always busy........cooking.......(work).

9. Would you like.........to meet....... (meet) my mother?

10. If you learn hard, you.......will get...... (get) good grades.

16 tháng 11 2021

Câu 1.

Tờ vé số có dạng \(\overline{a_1a_2a_3a_4a_5a_6}\in A=\left\{0;1;2;3;4;5;6;7;8;9\right\}\)

\(;a_i\ne a_j\)

Chọn \(a_1\ne0\) nên \(a_1\) có 9 cách chọn.

5 số còn lại là chỉnh hợp chập 5 của 8 số còn lại \(\in A\backslash\left\{a_1\right\}\)

\(\Rightarrow\)Có \(A_8^5\) cách.

Vậy có tất cả \(A_8^5\cdot9=60480\) vé số.

 

 

16 tháng 11 2021

c

31 tháng 3 2021

Hôm nay , tôi đi đến trường.

31 tháng 3 2021

Ngày mai, tôi đi Hà nội với bố tôi

12 tháng 3 2023

- Hợp chất vô cơ: CO2, Na2CO3 

- Hợp chất hữu cơ: 

+ Hiđrocacbon: C4H10, C6H6, C3H4 

+ Dẫn xuất của hiđrocacbon: C3H8O, CH3Cl, C6H6Cl6

giúp mình với 😭😭😭Vietnam Museum of Ethnology in Hanoi offers an insight into the 54 different (1) Trả lời groups of Vietnam in an effort to preserve cultural heritage and promote socio-cultural (2) Trả lời  within the country. The museum has over 15,000 artifacts (3) Trả lời  photographs and other multi-media such as audiotapes. Its indoor exhibition space can be (4) Trả lời via a virtual tour (5) Trả lời  includes the Viet, Muong, Tho, Chut, Tay, Thai, Ka Dai,...
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giúp mình với 😭😭😭

Vietnam Museum of Ethnology in Hanoi offers an insight into the 54 different (1) Trả lời groups of Vietnam in an effort to preserve cultural heritage and promote socio-cultural (2) Trả lời  within the country. 

The museum has over 15,000 artifacts (3) Trả lời  photographs and other multi-media such as audiotapes. Its indoor exhibition space can be (4) Trả lời via a virtual tour (5) Trả lời  includes the Viet, Muong, Tho, Chut, Tay, Thai, Ka Dai, H'Mong-Dao, Tang, San Dui, Ngai, Mon-Khmer, Nam-Dao, Cham, Hoa and Khmer ethnic groups. There are priceless antiques on (6) Trả lời alongside everyday objects such as pipes, baskets and knives. 

The outdoor area presents a range of traditional (7) Trả lời including a Tay stilt house and a Viet house. The museum is suitable for children, and all documents and display signs (8) Trả lời have been translated into French and English.

 

0
30 tháng 9 2018

đặt \(A=2+2^2+2^3+...+2^{2018}\)

\(\Rightarrow2A=2^2+2^3+2^4+...+2^{2019}\)

\(\Rightarrow2A-A=2^{2019}-2\)

\(\Rightarrow A=2^{2019}-2\)

30 tháng 9 2018

(2^2019-2)/2                                                                                                                                                                                                        1.                                                                                                                                                                                                                           hiện tại không thể trả lời