What is the order of instructions used for mud bathing

1. (2 points) Separate the gravel and clean and refine the pollutants.

2. (2 points) Specifically, accurately and intuitively (1 point) illustrate the number of slow excavation surveys and the large amount of work (1 point).

3. (3 points) "Lot" means a lot, indicating a large number (1 point), which here illustrates the degree of soil pollution (1 point), reflecting the characteristics of accurate and rigorous explanatory language.

4. (3 points per mu, 1 point for one, 3 points for two) BC (item B is wrong in "good"; Item C is wrong with "the development of scientific and technological means", which should be "real environmental awareness").

Separate the gravel and clean the contaminants.

Specifically, the number of surveys and the amount of work are explained accurately and intuitively (1 point).

"Large" means a lot, indicating a large number (1 point), which here indicates the degree of soil pollution (1 point), which reflects the accuracy and rigor of the explanatory language.

3 points, 1 point for one, 3 points for two) BC (item B is wrong in "orange talks"; Item C is wrong in "the development of scientific and technological means", which should be "real environmental awareness") for the mud bath to read the answer.

(2) It is unbelievable because this square kilometer of land has been severely polluted by decades of industrial production. According to the investigation, the contaminants on the land included oil, gasoline, tar, cyanide, arsenic, lead and very low levels of radioactive materials. A large amount of toxic industrial solvents have penetrated into the soil.

3) Thinking about it another way, in today's highly developed industrial machinery, even if the Olympic venues are located in such a place, there is no need to worry. The solution is very simple, just use excavators and trucks to dig up the contaminated soil and transport it to another location, and then bring in clean soil to backfill the site.

4) But the British seem to be stupid, they did not choose this easy method, but resorted to the easy and complex methods of bathing this contaminated soil.

5) Since October 2006, the City of London has conducted about 3,000 on-site surveys of the land's contamination and developed a detailed ecological restoration plan. Later, they set up two soil remediation plants in the Olympic Park and began cleaning nearly 1 million cubic meters of contaminated soil using soil washing and biodegradation. The toxic soil is dug up and transported into a giant soil "washing machine" to separate the sand and gravel, which is then washed to extract the contaminants.

After that, the heavy metals are separated by an oversized "electromagnet". The cleaned soil undergoes rigorous testing and laboratory testing to assess its cleanliness. The once heavily polluted land, which has been cleaned in this way, has been fully restored to "clean and safe" standards.

According to one test report, the cleaned soil would not be problematic even if it was accidentally swallowed by a child.

6) The British bathed in mud, which was considered a great feat. This is remarkable not because of how advanced their technological means are today, but because they have started an attempt to make up for the environmental debt of human beings: that is, to bring back the environment that they have defiled at any cost.

Everything in the world is more beautiful, and it is also fragrant.

After the Plum Blossom Festival in Hongmei Park, I understood....