-
Analysis: It is necessary to maximize (1000 carrots) when carrying goods and minimize (1 root) when returning, that is, 1 km each time, so (1) when the number of carrots is greater than 2000, it is necessary to pack 3 times, and 5 carrots are lost per kilometer, (2) when the number of carrots is greater than 1000, it is necessary to pack 2 times, and 3 carrots are lost per kilometer, (3) when the number of carrots is less than 1000, only 1 carrot per kilometer is lost directly to the end point.
1) 1000 5 = 200 can be lost 200 * 5 = 1000 roots when you finish 200 kilometers, and the remaining 2000 roots.
2) 1000 3 = 333 * 3 = 999 when you can go another 333 kilometers, and the remaining 1001 roots.
3) The remaining 1001 carrots go 1000-200-333 = 467 km, but only 1000 carrots can be loaded, so in the end there are 1000-467 = 533 carrots left to sell.
-
Donkeys are not thirsty, people are thirsty, it is estimated that people have not come out of this desert
-
The donkey doesn't want to carry carrots at all!!
-
The donkey doesn't want to carry carrots, and he doesn't want to eat carrots, this donkey is so pitiful! Ay.
-
I had a way to get the donkey to do the plane, so it didn't have to walk, so all 3,000 of them could be sold.
-
Zero. And his donkey can only go.
Can't come back.
-
0 can carry 1000 pieces at a time.
1000 km long.
The donkey has to eat 999 once and 999 when it comes back, and it can't come back if it goes.
So if you want to sell you can only sell the remaining 1 root.
-
Brain cells are explained as follows:
Humans originally developed from a fertilized egg, and with the development of the fertilized egg in the recipient limb, the cells gradually differentiated and multiplied, and eventually formed us.
In our body, there are some cells that belong to stem cells, and this cell can continue to differentiate and multiply, differentiating into other different cells. For example, hematopoietic stem cells can differentiate into nerve cells, somatic cells, etc.
The other part of the cell is non-differentiable, such as somatic cells.
To put it simply, stem cells can both differentiate and multiply. Functional cells, on the other hand, are non-differentiable, but can be increased. However, whether nerve cells can be increased has caused controversy among scientists for more than 20 years, some people think that nerve cells can be increased, while some scientists think that nerve cells cannot be increased, so what is the truth?
Can nerve cells count more than silver?
In March 2018, the journal Nature published an article saying that as humans grow, the hippocampus nerves are extremely reduced, and no new nerve cells are produced after adulthood.
In other words, brain cells belong to the consumable type of cells, and they cannot be increased, and one less is used. We know that Nature is a mainstream authoritative journal, and the research that can be published in Nature represents the latest progress in scientific research to a certain extent.
Brain cells mainly include neurons, which are responsible for processing and storing relevant information, and glial cells, which play a supporting role, providing neuronal nutrients** and metabolism.
-
First, under normal circumstances, the aging and death of brain cells and the rate of regeneration are balanced, and the brain will not be used up just by thinking, and under abnormal circumstances, the severe lack of oxygen in brain cells will lead to large-scale death, which is irreversible, and finally will cause people to lose consciousness and die!
Second, the right brain of the human being will not be used up, but in the case of cerebral hemorrhage, embolism, stroke of special diseases, it will lead to the death of a large area of brain cells, loss of function, the function of the right brain will have a serious impact, but will not be completely lost, the left and right brains of the human body are not absolutely divided, there is a certain mutual compensatory function, one side completely loses function, the other half will replace part of the function. These compensatory functions ensure the basic survival of the person.
-
Of course, there is no stopping death, and there is no stopping rebirth.
Rest assured of the brain cells of your brain.
You will live another thousand years.
There is no end to death, and there is no end to life.
Otherwise you're a super genius.
I won't ask that kind of question anymore.
-
The landlord has found detailed information for you, look carefully, don't forget my credit if you have a harvest - choose the best!
The brain is composed of about 140 memory cells, weighs about 1,400 grams, the thickness of the cerebral cortex is about 2-3 mm, the total area is about 2,200 square centimeters, and it is estimated that about 100,000 brain cells die every day (the more you don't use the brain, the more brain cells die). A person's brain stores information equivalent to 10,000 books in a library with 10 million volumes, and the person who is the best at using his brain will only use 10% of his brain power in his lifetime.
Listen to the soothing **, which is very beneficial to the metabolism of brain nerve cells; Chatting with friends or strangers also promotes brain development and brain function. Read more books and read more newspapers, not to use books to pass time, but to enrich your brain; Observe the things around you and pay attention to storing information in your brain in time, and then memorize it to activate your mind
The brain is like a hard drive with a huge capacity, and the more you have in it, the more you can use.
-
Areas of the brain that are often used will be enhanced. That is, the brain grows up.
-
What kind of crooked reasoning, it's all nonsense, what is it, gossip, don't believe it.
-
1.Brain teaser question: One night there was a strong wind, and there were a total of 12 lit candles on a table, 3 of which were blown out by the wind, and then 2 were blown out by another gust of wind, and finally how many candles were left on the table?
The end of the earth is coming. The last man on earth was sitting at his desk writing a suicide note, and suddenly he heard a knock on the door, is it a ghost, an alien, an animal? Neither. Not to mention the sound of inanimate things such as wind or stones, so who made the knock on the door?
There was a boat with a limit of 50 people, and after there were already 49 people on board, plus a pregnant woman got on board, and the boat sank into the sea, why?
With the improvement of living standards, the incidence of diabetes is getting higher and higher, and it is increasing year by year. According to statistics, one in 10 adults in China has diabetes, and what is even more frightening is that many people do not know that they have diabetes. <> >>>More
1.Sing more and practice more. 2.
Sing a few more times, your voice is not suitable for singing long notes, practice singing long notes more. There is time to compress the air every day. 3. >>>More
What are you doing??? From the perspective of traditional Chinese medicine, the content of active ingredients in drugs varies individually, and the content of active ingredients contained in each medicinal part is also different, and the content of active ingredients is also related to the harvest time. In general, leaves contain the most cardiac glycosides. >>>More
Today, there are chickens and rabbits in the same cage, with 35 heads on the top and 94 feet on the bottom, and ask how many chickens and rabbits each have (using a binary system of equations to solve). >>>More
Select B. Qi and Youhu fought in Ganzhiye and made "Willing Oath". >>>More