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10 tháng 3 2017

Thời gian cả chiếc xe lửa vượt qua chiều dài của chính nó là 10 (giây)
Thời gian cả chiếc xe lửa vượt qua chiều dài của cây cầu dài 225m và chiều dài của chính nó là 25 (giây)
Thời gian để điểm đầu của xe lửa vượt qua chiều dài của cây cầu là 25 - 10 = 15 (giây)
Số mét chiếc xe lửa chạy được trong thời gian 1 giây là 225 : 15 = 15 (m)
Chiều dài của xe lửa là 15 x 10 = 150 (m)

21 tháng 3 2016

Một con tàu vượt qua một cái cây mất 10 giây và một cây cầu dài 225 m mất 25 giây.Tìm chiều dài của con tàu.

300 m thì phải đó

đáp số:300 m

17 tháng 12 2016

ra 90m do ban

5 tháng 2 2017

35 second

18 tháng 2 2017

Mk nhầm!35 m!

k mk nha!

Question 29: What/ most/ important/ volunteer activity/ our area? A. What is most important volunteer activity in our area? B. What is most important volunteer activity at our area? C. What is the most important volunteer activity at our area? D. What is the most important volunteer activity in our area? Question 30: The second/ priority/ train/ young people/ job application skills. A. The second priority is training young people for job application skills. B. The second priority is to train...
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Question 29: What/ most/ important/ volunteer activity/ our area?
A. What is most important volunteer activity in our area?
B. What is most important volunteer activity at our area?
C. What is the most important volunteer activity at our area?
D. What is the most important volunteer activity in our area?

Question 30: The second/ priority/ train/ young people/ job application skills.
A. The second priority is training young people for job application skills.
B. The second priority is to train young people for job application skills.
C. The second priority is train young people for job application skills.
D. The second priority is to training young people for job application skills.
Question 31: He/ see/ advertisement/ the Youth Newspaper/ February 22th.
A. He saw the advertisement in the Youth Newspaper in February 22th.
B. He saw advertisement in the Youth Newspaper in February 22th.
C. He saw advertisement in the Youth Newspaper on February 22th.
D. He saw the advertisement in the Youth Newspaper on February 22th.
Question 32: He/ be/ creative, patient/ and/ have/ great love/ children.
A. He is creative, patient and has great love on children.
B. He is creative, patient and has great love with children.
C. He is creative, patient and has great love of children.
D. He is creative, patient and has great love for children.
Question 33: I/ can/ send/ you/ references/ the Director of the Happy Mind Charity Centre.
A. I can send you the references from the Director of the Happy Mind Charity Centre.
B. I can send you the references to the Director of the Happy Mind Charity Centre.
C. I can send you a references from the Director of the Happy Mind Charity Centre.
D. I can send you a references to the Director of the Happy Mind Charity Centre.

1
19 tháng 2 2020

Question 29: What/ most/ important/ volunteer activity/ our area?
A. What is most important volunteer activity in our area?
B. What is most important volunteer activity at our area?
C. What is the most important volunteer activity at our area?
D. What is the most important volunteer activity in our area?

Question 30: The second/ priority/ train/ young people/ job application skills.

A. The second priority is training young people for job application skills.
B. The second priority is to train young people for job application skills.
C. The second priority is train young people for job application skills.
D. The second priority is to training young people for job application skills.
Question 31: He/ see/ advertisement/ the Youth Newspaper/ February 22th.
A. He saw the advertisement in the Youth Newspaper in February 22th.
B. He saw advertisement in the Youth Newspaper in February 22th.
C. He saw advertisement in the Youth Newspaper on February 22th.
D. He saw the advertisement in the Youth Newspaper on February 22th.
Question 32: He/ be/ creative, patient/ and/ have/ great love/ children.
A. He is creative, patient and has great love on children.
B. He is creative, patient and has great love with children.
C. He is creative, patient and has great love of children.
D. He is creative, patient and has great love for children.
Question 33: I/ can/ send/ you/ references/ the Director of the Happy Mind Charity Centre.
A. I can send you the references from the Director of the Happy Mind Charity Centre.
B. I can send you the references to the Director of the Happy Mind Charity Centre.
C. I can send you a references from the Director of the Happy Mind Charity Centre.
D. I can send you a references to the Director of the Happy Mind Charity Centre.

2 Complete the text with the words below.Both photos 1____________ people using smartwatches. In the 2____________ photo, there is a woman on a train who is looking at her watch, 3____________ in the second photo there are two men jogging and wearing smartwatches. The woman looks as 4____________ she is on her way to work and checking her emails. It 5____________ to me that she’s just had a notification of a new message and is looking to see who the sender is. She is holding a book, but her...
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2 Complete the text with the words below.

Both photos 1____________ people using smartwatches. In the 2____________ photo, there is a woman on a train who is looking at her watch, 3____________ in the second photo there are two men jogging and wearing smartwatches. The woman looks as 4____________ she is on her way to work and checking her emails. It 5____________ to me that she’s just had a notification of a new message and is looking to see who the sender is. She is holding a book, but her attention is directed at the small screen on her wrist. 6____________ the first photo, the second photo does not show the men looking at their watches. It doesn’t look to me 7____________ if they are interested in anything apart from running. In my 8____________, athletes wear smartwatches to check their performance, such as counting their steps or their heart rates, and not to stay connected with work. They don’t 9____________ stressed or like they need to be checking their phones every two minutes. The way I 10____________ it, we should all have periods of time when we are unconnected from our studies or work, and just use technology for leisure.

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Exercise 4. Read the passage and circle the best answer A, B, C or D. ​Ha Long Bay has been twice recognized by UNESCO as a World Heritage Site in 1994 and in 2000, and also that Ha Long Bay is in the second place in the worldwide competition of the World's Seven Natural Wonders. It is as attractive and beautiful throughout the four seasons: spring, summer, autumn, and winter. Traveling on small sailboats among hundreds of limestone islands, one may visit the amazing Surprise Cave, the...
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Exercise 4. Read the passage and circle the best answer A, B, C or D. ​Ha Long Bay has been twice recognized by UNESCO as a World Heritage Site in 1994 and in 2000, and also that Ha Long Bay is in the second place in the worldwide competition of the World's Seven Natural Wonders. It is as attractive and beautiful throughout the four seasons: spring, summer, autumn, and winter. Traveling on small sailboats among hundreds of limestone islands, one may visit the amazing Surprise Cave, the floating fishing village, and see how the locals live, which are top of the list of things to do here. The experience of visiting Ha Long Bay is unforgettable, where you will see something that will stay in your mind and eyes for years. You will enjoy meeting Vietnamese people and tasting their delicious food. You will have fresh air all day and night, especially if you wake up early in the morning and watch the sun rise on the deck coming slowly through the islands. Be sure not to miss visiting Ha Long Bay in your lifetime. 1. What is the best title of the passage? ​A. Vietnam, an attrative tourist destination​B. Ha Long Bay, a world heritage in Vietnam ​C. Unforgettable experience in Ha Long Bay​D. Amazing Surprise Cave in Ha Long Bay 2. The word “unforgettable” in line 6 is CLOSEST in meaning to ______. ​A. important ​B. memorable​C. famous​D. beautiful 3. How many times has Ha Long Bay recognized as a World Heritage Site by UNESCO? ​A. 2​B. 3​C. 4​D. 5 4. According to the passage, tourists can enjoy all of the following EXCEPT_____. ​A. Exploring the amazing Surprise Cave​B. Traveling on small sailboats ​C. Visiting the floating market​D. Seeing how the local people live

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 Fill each of the numbered blanks in the following passage:It was a cold night. The train traveled through some very lonely countryside. There was (1)__________sign of human life and the station at Brest seemed (2)__________an oasis. The passengers were advised to get (3)____________the train because they were going to be there for a long time. The customs officers had to (4)____________their duty, searching the entire train looking mainly for illegal literature. They found quite a lot,...
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 Fill each of the numbered blanks in the following passage:

It was a cold night. The train traveled through some very lonely countryside. There was (1)__________sign of human life and the station at Brest seemed (2)__________an oasis. The passengers were advised to get (3)____________the train because they were going to be there for a long time. The customs officers had to (4)____________their duty, searching the entire train looking mainly for illegal literature. They found quite a lot, including some interesting magazines to take home to their families. (5)___________ this was happening, the train moved away from the platform to (6)____________its wheels changed. It was lifted up and swung over on to a wider set of (7)________________. But the passengers in the station did not know about this. To them it was a long, unnecessary wait, (8)_______________worse by the fact that their luggage disappeared with the train for at (9)_______________an hour. If they had been given a better explanation of what was going on, they (10)________________have been in a better mood. 

2
25 tháng 8 2020

1. where

2 over

3knew

4.although

5.when

6.a

7.notes

8.count

9. said

10.afford

25 tháng 8 2020

tích cho mik nhé

12 tháng 2 2023

1f

2b

3a

4d

5c

6e

12 tháng 2 2023

1f   2b   3a   4e   5c   6d

13 tháng 8 2018

Fill in a modal or a synonymous expression and the appropriate form of the verb in brackets.

Can you help me? I ....am finding out...............(find out) what time London train arrives.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35.ORESUND BRIDGE          Imagine driving along a bridge that is so long that you can't even see the other end. The Oresund Bridge, one of the longest bridges in the world, (31)________so far ahead into the distance that you can't even tell where the blue of the water (32) ________ the blue of the sky.           The...
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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35.

ORESUND BRIDGE

          Imagine driving along a bridge that is so long that you can't even see the other end. The Oresund Bridge, one of the longest bridges in the world, (31)________so far ahead into the distance that you can't even tell where the blue of the water (32) ________ the blue of the sky.

          The Oresund Bridge is an amazing example of modern engineering design that links the Scandinavian countries of Denmark and Sweden. It is 8 kilometers long and was (33) ________in July 2000. It crosses the Flinte Channel, the chilly waterway (34) ________the two countries.

          At one stage the bridge turns into a tunnel under the sea. This tunnel is also a record breaker in its own right as it is the longest road and rail tunnel in the world. The engineers built an artificial island near the Danish coast that (35) ________support part of the bridge structure, as well as being the point at which the road disappears underground, before coming out in Copenhagen, the capital of Denmark

Điền vào ô số 31

A. travels

B. leans

C. stretches

D. pulls

1
6 tháng 1 2019

Đáp án C

Travel: đi lại

Lean: nghiêng

 Stretch: trải dài

Pull: kéo

Imagine driving along a bridge that is so long that you can't even see the other end. The Oresund Bridge, one of the longest bridges in the world, (31) ________ so far ahead into the distance that you can't even tell where the blue of the water (32)________ the blue of the sky. [Hãy tưởng tượng việc lái xe dọc cây cầu quá dài đến nỗi mà không thấy được tận cùng. Cầu Oresund, một trong những cây câu dài nhất thế giới, trải dài về phía trước rất xa đến nỗi mà bạn  thậm chí không thể biết đâu là màu xanh của nước....màu xanh của trời.]