Regarding the question of restore, it is a very simple restore problem

It is recommended that you use "one-click ghost". This one works great.

Then open the installed directory, which defaults to C: Dosh Ghos (Attention!). The folder is usually hidden) to open the GHO main program inside.

Then select "Backup C drive". If you want to recover in the future, you can choose "One-click Restore C Drive". When you install other new programs or games, you can also back them up, in short, you can back up in any state, and the system can be restored to this state.

You can also get here.

Using ghost as the kernel, the backup and restoration system is fast and stable.

Realize one-click fool-proof operation, and flexibly select hotkeys.

Do not modify the hard disk partition table, install and uninstall with confidence.

Automatically select the backup partition without worrying about whether the space is enough.

Intelligently protect backup image files from accidental deletion and virus intrusion.

When the DOS system is run independently, it will never occupy system resources.

It perfectly supports multiple partition backup and restore and set permanent restore points.

Level 2 password protection can be set to ensure the security of the software.

Hope mine can bring you some help.

It is recommended that you use the ghost hard disk version, a lot of it. Simple to use.

Buy a Windows PE system maintenance disk and ghost it.

Remember, the system must be clean, install all system patches and computer hardware drivers.

The mirror image is about 950m, and that's how my own home computer is.

.Don't understand what you're talking about.?

Solution: Let Mount Everest be height x meters, x 8 = (x-4888) 3-2143x = 8 (x-4888) - 5136

5x=4888*8+5136

x = 8848 meters.

A: Mount Everest is 8,848 meters high.

After four times, A and B are both 48, backwards:

The fourth time from port B to port A with the same number of ships to port A, then A originally 48 2 = 24, B originally 48 + 24 = 72, the third time from port A to port B with the same number of ships to port B, forest lead B originally 72 2 = 36, A original 24 + 36 = 60;

For the second time, if there are as many ships as the port of A to port A, then A has 60 2 = 30 and B has 36 + 30 = 66;

For the first time, when the same number of ships departed from port A to port B as port B, there were 66 2 = 33 in the remaining section of B, and 30 + 33 = 63 in the first section.

Answer: A and B originally had small boats parked in each place.

A and B

Answer:.. 4。16a+5 (any number can be substituted by a).

On the third day, after the second day, there was more than 1 half left, and there was 1 pineapple left, (half was 2).

The total number is 4.

The next day the remaining half was sold by 1 more and 4 left, (half of which was 5) for a total of 10.

On the first day, half of the total was sold by 2 more, leaving 10, (half of the 12) total was 24.

A total of 23 were sold.

So $2 each.

The reduction problem is one of the typical application problems, which refers to the application problem that requires Ling Hong to produce a certain number after knowing the result of four operations. The solution to such problems should be performed in reverse order of the order described in the title, and the inverse operation of the said operation can be performed, and the equation can be listed. In short, if you do the opposite, you can calculate the result.

The reduction problem refers to the application problem of finding the original number after knowing the result of several steps. To solve this kind of problem, according to the order of operation described in the question, using the inverse operation relationship of addition and subtraction, multiplication and division, starting from the known final result, and gradually reversing until the original number is obtained.

This type of problem is characterized by the fact that an unknown quantity is proposed, and after a series of known changes, another known quantity is given, and the original unknown quantity is found. The key to answering these questions is to "restore".

Start with the last known number and work backwards. If the original addition is used, subtraction is used in the calculation; The original subtracted mausoleum was added when calculating; If it is multiplied, divide is used in the operation; Originally, divide and multiply when operating. Pay attention to the order of operations and use parentheses correctly when calculating column synthesis equations.

This type of problem is called a restore problem.

Example 1] Add 6 to a number, subtract 5, multiply by 4, divide by 3, and get 248, find this number.

Solution: 248 3 4+5-6

A: This number is 185.

Example 2] A primary school student, calculating an arithmetic problem, should be used to remove, misused to multiply, the result is. What should be the correct answer [3]?

Solution: Due to the misuse of demultiplication, the result is obtained, so what should be the number of feet before the multiplication? After finding the number before multiplication, this number is removed according to the meaning of the question, which is the answer sought.

Original number) correct answer).

A: The correct answer should be.

Add twice as much water, and add four times as much water.

5 kg 9 kg.

So for every double the weight of the water which is (9-5) 2=2 kg.

In who is twice as long as the song: water weight = 2 * 2 = 4 kg.

Then the barrel weight = 5-4 = 1 kg.