Can you describe London in a few words?

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Report Mathematics Basic Training Fifth Grade Volume 110 (Beijing Normal University Edition).

Mathematics Basic Training Fifth Grade Volume 110 Page 1 (Beijing Normal University Edition) Question 1 Gas Station: Xiaoxiao participated in the mathematics competition, a total of 25 questions, 4 points for 1 correct question, and 1 point for 1 wrong question. She scored 77 points.

Do you know how to answer questions with a smile? Is it possible for her to score 81 points? Why?

Asked by: Night Requiem - Level 2 Whistleblowing Xiaoxiao participated in a math competition, a total of 25 questions, 4 points for 1 correct question, 1 point for 1 wrong question, no points for not doing it, and no points for inverted points, she did all the questions and got 77 points. Do you know how to answer questions with a smile?

Is it possible for her to score 81 points? Why? It seems that there is a problem with this question, because Xiaoxiao has done all the questions, you can set it as the right x question, and if you get it wrong, you will get 4*x points for the correct question, and 25-x points will be deducted if you do it wrong, and the total score is:

4x-(25-x)=77

4x-25+x=77

5x=102 has no integer solution. Suppose Xiaoxiao did x questions correctly, did wrong y questions, and did z questions but didn't do z questions in the condition z=0

Then x+y+z=25 (1).

4x-y=77 （2）

There is no integer solution to this system of equations.

That is, if she does all the questions.

A 77-point scenario is unlikely.

If you smile and get 81 points.

Then 4x>=81, which means that x is at least 21

Then y is at least 3 (because 4*21-3=81).

At this time, z=1 means that there is a question that has not been done, and 21 of the 24 questions that have been done are correct and 3 are wrong).

This situation is also the only possibility: Suppose Xiaoxiao did x questions correctly, did it wrong, y questions, and did z questions but did not do z questions, and z=0 in the condition

Then x+y+z=25 (1).

4x-y=77 （2）

There is no integer solution to this system of equations.

That is, if she does all the questions.

It is impossible to score 77 points The theme of the building is wrong, it should be 75 points, not 77 points. The score of Xiaoxiao should be a multiple of 5! The landlord wrote the score wrong, it should be 75 points!

1+4＝5，75/5＝15，15+5＝20，25-20＝5。Because 81 5 is not an integer, it is impossible to score 81 points, unless he only did 24 questions and did 1 question without doing it.

1. London, a modern and ancient city that has attracted the attention of the world, has more royal luxury than New York, and less romantic than Paris.

2. London, the capital of the United Kingdom, is a very prosperous city, which is located on the plains of southeastern England, across the River Thames. Because it has a heavy fog almost every few days, and it does not disperse for a long time, it is also called the fog capital.

Imitation 3, London, is a city that can trigger your thoughts.

There are many fascinating cities, towns, villages and small tribes in the UK, but it's only when you get to the size of the capital that you really feel the charm of the UK. Different people can have different opinions about London, but it will never be a sense of banality.

5. London, the world-famous city at the southern tip of the British Isles, a bright pearl on the shore of the English Channel, with her long history, with her irreplaceable status as a European financial center, with her charming scenery, as well as the world-famous Big Ben, Buckingham Palace, the British Museum and the Tower of London, as well as the obsessive **, fashion and other popular elements, have attracted the eyes of countless tourists.

1. Strike at London in English: London.

2、n.London.

3. london, an English word, a noun, when used as a noun, it means "London is grinding".

4、tell me about all your doings in london.Tell me everything you did in London.

The correct pronunciation of London English is:"london", i.e. l nd n. Here's a detailed explanation:

London is the capital and largest city of the United Kingdom, as well as one of the world's cultural, commercial, financial and tourism hubs. In the UK, English in London is considered to be one of the most authentic, standard English accents. The characteristics of London English include a clearer pronunciation, a more stable intonation, and less local accents.

The following is an introduction to the pronunciation and features of English in London.

The vowel sounds in London English are shorter than in other parts of the UK, such as words"trap"、"bath"、"dance"London English usually pronounces the vowels of these words as short vowels, i.e. a, or e. In other parts of the UK, these words will have longer vowels, such as a:, or :

Sound. Voiced consonants are more common in <> London English, such as the heavier pronounced d, b, g, etc., unlike the more relaxed and softer sounds in other parts of the UK. In addition, the pronunciation of English in London is more coherent and rapid, especially when speaking at a fast pace.

Although London English is considered one of the standard English accents, there are some special pronunciations and usages. For example, the r sound in London English is flat, soft, and is usually pronounced only at the beginning of a word or in an accented syllable, and is often omitted in other places. In addition, there are some special usages and abbreviations in London English, such as speaking"innit"It's not"isn'tit"to express a question or ask for an opinion.

To sum up, London English is a relatively authentic, standard English accent, which is characterized by clear pronunciation, steady intonation, and voiced consonant pronunciation. Despite the existence of some different pronunciations and usages, London English is still considered one of the most popular English accents in the UK.