The world s most environmentally friendly country, a beer bottle is worth 2 yuan, why can waste be

It may be because of the lack of resources in that kind of country, so every beer bottle has to be reused.

Because this place pays attention to environmental protection, **waste is actually very expensive,

This is because their country wants to draw attention to environmental protection.

Because everyone in this country is very environmentally conscious, they even need a beer bottle.

A low-carbon economy is an economic development model that emits as little greenhouse gas emissions as possible, especially to effectively control the emissions of carbon dioxide, the main greenhouse gas. In the context of global warming, the low-carbon economy has attracted the attention of more and more countries.

In recent years, the scientific community and countries** have basically agreed that human activities have led to an increase in greenhouse gases (especially carbon dioxide) in the earth's atmosphere, and the climate is changing. In the foreseeable future, global warming caused by excessively high levels of greenhouse gases will have a negative impact on human life. Therefore, the promotion of a low-carbon economy is considered to be one of the effective ways to avoid catastrophic climate change and maintain sustainable human development.

The low-carbon economy is based on low energy consumption, low emissions and low pollution, and its essence is to improve energy efficiency and create a clean energy structure, and the core is technological innovation, institutional innovation and change in the concept of development. The development of a low-carbon economy is a global revolution involving production patterns, lifestyles, values and national rights and interests.

The Chinese Academy of Social Sciences' Blue Book of Cities: Report on China's Urban Development (No 2) released in Beijing in June pointed out that in the context of global climate change, the development of a low-carbon economy is becoming the consensus of decision-makers at all levels. Energy conservation and emission reduction and promoting the development of low-carbon economy are not only the key solutions to deal with global warming, but also an important means to practice the scientific concept of development.

On the issue of a low-carbon economy, there are some misconceptions that need to be clarified. First of all, low-carbon is not the same as poverty, poverty is not a low-carbon economy, and the goal of a low-carbon economy is low-carbon and high growth; Second, the development of a low-carbon economy will not restrict the introduction and development of energy-intensive industries, as long as the technological level of these industries is leading, it will meet the needs of low-carbon economic development; Third, a low-carbon economy does not have to be costly, greenhouse gas emission reductions can even help save costs, and does not require high technology, but there are some policy hurdles to overcome; Fourth, a low-carbon economy is not something that needs to be done in the future, but should start now. Fifth, the development of a low-carbon economy is a matter for everyone, and tackling global warming is about every country and region on the planet and about everyone.

10 pieces can drink 15 bottles.

Buy 5 bottles for 10 yuan, drink them, leave 5 bottle caps, and 5 empty bottles.

Use 4 caps, 4 empty bottles for 3 bottles of wine, drink it, 4 caps remaining, 4 empty bottles for 4 caps, 4 empty bottles for 3 bottles of wine, drink it up, 3 caps remaining, 3 empty bottles for 2 empty bottles for 1 bottle of wine, drink it over, 4 caps remaining, 2 empty bottles.

Use 4 caps, 2 empty bottles for 2 bottles of wine, drink it, 2 caps remaining, 2 empty bottles for 1 bottle of wine with 2 empty bottles, drink it up, 3 caps remaining, 1 empty bottle.

So you can drink a total of 5 + 3 + 3 + 1 + 2 + 1 = 15 bottles.

Can't you insert a problem-solving process? I represent it in a frame diagram on paper. Drink up to 20 bottles of two ideas. There's nothing wrong with it.

There's also an easy way to just count the money for drinks:

2 yuan for 1 bottle of beer, 4 bottle caps for a bottle, 2 bottles for a bottle, calculated: a bottle cap yuan, 1 bottle of beer water purification = yuan, so 10 bottles of beer.

You can drink 20 bottles, a bottle of beer is 2 yuan, and two empty bottles can be exchanged for a bottle of beer, indicating that an empty bottle is worth 1 yuan:

4 bottle caps can be exchanged for a bottle of beer, indicating that one bottle cap is worth 5 cents;

A bottle of beer is 2 yuan, of which the bottle cap is worth 5 cents, the empty bottle is worth 1 yuan, and the beer inside is 5 cents according to the natural value.

For 10 yuan, you can only drink beer, and you don't need bottle caps and empty bottles, you can drink up to 20 bottles.

It's too easy!

Have you ever learned about tree structure?

Now we define three things for you: 1 means to buy; 2 means that the empty bottle is replaced; 3 means that the lid is changed;

Now you start with 1 and work your way down to draw a Y-shape; Priority is given to 2,3;Consider 1 again;

16 bottles, 1 empty bottle left, 3 caps!

10 yuan can drink 20 bottles of wine, there are 2 ways to calculate:

The first type: 2 yuan for 1 bottle of wine, 4 bottle caps for 1 bottle, 2 bottles for a bottle, calculated: 1 bottle cap yuan, 1 bottle of beer water purification = yuan, so 10 bottles of beer.

The second type: buy 5 bottles of beer for 10 yuan, and then borrow 15 bottles of wine, so that you can drink a total of 20 bottles of beer. After drinking, 20 empty bottles are exchanged for 10 bottles of beer, 20 bottle caps are exchanged for 5 bottles of beer, and a total of 15 bottles of beer are returned. OK, total number of bottles = 5 + 15 = 20 bottles.

1. Beer is 2 yuan, and 10 yuan a bottle can buy 5 bottles of beer.

2. Get 5 bottles and 5 caps after drinking beer. 5 bottles for 2 beers and one bottle left. 5 caps were replaced, 1 beer was left, and 1 cap remained.

3. After drinking beer, there are a total of 3+1=4 bottles. There are 3+1=4 lids. 4 bottles for 2 beers and 0 bottles remaining. 4 caps were replaced, 1 beer was left, and 0 caps remained.

4. After drinking beer, 3 bottles and 3 caps. 3 bottles for 1 beer, 1 bottle left. 3 caps remain.

5. After drinking beer, 2 bottles, 4 bottle caps. 2 bottles for a bottle of beer, 4 caps for a bottle of beer.

6. After drinking beer, 2 bottles and 2 bottle caps. 2 bottles for 1 beer, 2 caps left.

7. In the end, there is 1 bottle left, and 3 bottle caps can not be changed for beer.

8. Summing up and counting, this person can drink a total of 15 bottles of beer.

You can drink 15 bottles or 20 bottles, because there are two ways to calculate it, so there are two results.

1. If you are not allowed to borrow, you can drink up to 15 bottles:

In the first round, buy 5 bottles, (get 5 empty bottles, 5 caps).

In the second round, you can change 3 bottles, (4 empty bottles and 4 caps remaining).

In the third round, you can change 3 bottles, (3 empty bottles and 3 caps remaining).

In the fourth round, you can change 1 bottle, (2 empty bottles remaining, 4 caps).

In the fifth round, you can change 2 bottles, (2 empty bottles remaining, 2 caps).

In the sixth round, you can change 1 bottle, (1 empty bottle remaining, 3 caps).

In this way, a total of 5 + 3 + 3 + 1 + 2 + 1 = 15 (bottles) is drunk

2. If you are allowed to borrow, you can drink up to 20 bottles

Of course, if you want to drink the 20 bottles of theory, you need the boss's kindness, cooperation, and willingness to borrow bottles and caps.

Because theoretically, the remaining 1 bottle, 3 caps are still worth yuan, and you can still drink 5 bottles of wine.

The first step is to borrow 1 bottle, borrow 1 cap, exchange for 2 bottles of wine, and return the bottle and cap owed after drinking, leaving 1 bottle and 1 cap (drink 2 bottles).

The second step is to borrow 1 bottle, exchange it for 1 bottle of wine, and return the bottle owed after drinking, leaving 2 caps (drink 1 bottle).

The third step is to borrow 2 caps for 1 bottle of wine, return the lids owed after drinking, and still owe 1 cap, leaving 1 bottle (drink 1 bottle).

Step 4: Borrow 1 bottle for 1 bottle of wine, and return the bottle lid after drinking

In this way, you can exchange 1 bottle and 3 caps for 5 bottles of beer, and you can drink 20 bottles of beer together.

You can drink up to 20 bottles.

Customer: How much is the bottle of boss beer? Can't finish drinking, can't you return?

Boss: 2 yuan a bottle, two empty bottles for a bottle, four bottle caps for a bottle, can't drink the customer to return the customer: then come 20 bottles.

Boss: Holo.

Customer: Boss, replace these 20 empty bottles and 20 caps for 15 bottles of wine Boss: Haoler.

Customer: Boss, check out, 20 bottles are not finished, 15 bottles left, give you 10 yuan, next time come to the boss: [frightened] [frightened] [frightened].

5 caps 5 bottles, 4 bottles for 2 bottles, 5 2 7 caps, 3 bottles 4 caps for one bottle of wine. 1, 4 bottles 4 caps, 3 bottles of wine for 3, and 3 bottles of wine for 3 caps, 2 bottles of wine for one bottle of wine 1, two bottles with 4 caps, for 2 bottles of wine 2, two bottles for two caps, two bottles for one bottle of wine, 1

In today's society, cars can be seen everywhere, which not only causes great harm to people's physical and mental health, but also pollutes the atmosphere. All living beings in the world are harmed by this "technological product" to a certain extent, and it is selfish for human beings to disregard the safety of other life on earth for their own convenience. Taking a step back, cars are also very harmful to humans.

Freon in air conditioners and refrigerators also destroys our precious atmosphere. The so-called high-tech products have made the world dirty and rigid, the free earth has been swallowed up by human beings little by little, the free sky has been reduced by human beings little by little, and the free sea has been encroached upon by human beings little by little.

But the development of science has made people's dreams from ancient times to the present day into reality, in ancient societies people can only drink blood, and now look at our food, clothing, housing and transportation, what progress, without scientific development, can we live so comfortably? It turns out that a little cold and fever can kill people, but now medicine can come back to life. It turns out that "people are rare in their 70s", and now it is not uncommon to live to be 100 years old, isn't this a credit for the development of science and technology?

Cars and planes, trains and ships were unimaginable in ancient times, a few kilometers away was an expedition, and now, the earth is like a small village, ready to be turned around.

Every country has its own myth about how beautiful it is; Every country has its own famous book, which has been handed down to this day; Every country has a legacy of classic paintings, how precious they are. And the development of science has turned everything into history. There will never be a beautiful legend again, because there is reality.

There will never be a good masterpiece, because there is no romance. There will never be a famous painting, because the city is not a landscape. In ancient times, when people looked at the moon, they would think of Chang'e, the Jade Rabbit, and their relatives from afar.

Now people think of the same bright moon, thinking of a stone ball full of small holes and how to blow it up.

The development of science has brought people into the age of reason, and people will no longer be blindly superstitious, but will pursue the truth. Without scientific development, we still think that the sky is round and the earth is round; Without scientific development, we still think that heaven is heaven and hell is underground. Science makes us more aware of where we are.

In the future, the earth will be destroyed at the hands of people, and even more so, everything on the earth and human beings themselves.

In the future, humans will live to be more than two hundred years old, and we will be able to run rampant in the solar system and even the Milky Way.

In the future, do we still have a future?

In the future, ours will be even better in the future.