I want my doubts to be solved, help me solve them

What is a netizen expert?

Most "know" users will have this experience: almost all of them have some "answerers" who specialize in this under each category of "know", and they diligently solve their doubts in their fields every day.

In order to encourage these users who do have expertise, "Know" has launched the "Netizen Expert" program - the statistics and ranking of the points obtained by netizens under the secondary classification (only the weekly rising points are counted), and each second-level classification will produce a "Netizen Expert Ranking". During the trial operation stage, the top 10 users in the ranking will be awarded the title of "Netizen Expert".

At the same time, according to the feedback of users, and in order to better ensure the quality of netizen experts, we adjusted the strategy of awarding the title of expert to the top 10 users in the original plan to the top 5 users in the ranking. The leaderboard is updated weekly.

The way that netizen experts answer questions on knowing is no different from that of ordinary users, but their expert identity will be highlighted in the display.

Of course, people who violate the "knowing principle" cannot get the title of "netizen expert".

What is a specialization?

Under different secondary classifications, different netizen experts will be produced. The second-level classification corresponding to each netizen expert is also his specialization classification.

For some masters, he may be able to become a netizen expert under multiple secondary classifications, so there will be many specialized classifications.

**Can you view netizen experts?

1.On the right side of each sub-category directory page, there is a list of classified netizen experts, listing 5 netizen experts under the sub-category.

2.Check the points in each user's personal account and user dashboard, which have tags for netizen experts and specializations.

Experts are not chosen.

Whoever scores high in the zone is the top five experts.

1. D, because only he means that academic performance is difficult to get up.

2. One is: to read poetry well, you must read books well, and you must read books seriously. The other is: to read a book, to read meaningful books.

The time difference between 5 o'clock on the afternoon of the 26th and 12 noon on the 25th is: 24 + 5 = 29 hours.

2 minutes slower per hour, that is, slow: 29 * 2 = 58 minutes The sign time is: 5:00 + 58 = 5:58 I hope it helps you.

= (1/9 9) of 2012 to the power of 9

-1) of 2012 to the power of 9

If a portion is poured out, the solute and solvent decrease in equal proportion, so its solute mass fraction remains the same.

The concentration of the amount of matter is, of course, the same thing.

Mass fraction it's a ratio, just like a fraction, (have you ever seen a fraction that gets smaller by dividing the numerator and denominator by dividing by 2?) Apparently not).

Because the solution is mixed evenly, the mass fraction refers to the ratio of the mass of the solute in the solution to the mass of the solution. It also refers to the percentage of the mass of a substance in a compound that is in the total mass.

You think, suppose you take half of the solution from this original solution A and inject it into 2 tubes, B, C

Isn't that two ways of thinking?

It can be thought of as taking B out of A and leaving CIf you follow your train of thought, then C pours out a part of the solute, and its mass fraction should be less than O

In the same way, it can be thought of as taking C out of A and leaving BIf you follow your train of thought, then B pours out a part of the solute, and its mass fraction should also be less than O

Then we can conclude that both b and c are less than a, which is obviously not possible (if they are less than, then where does the solute go?). )

The solute mass fraction has nothing to do with the amount of solution, it's just a ratio.

You just have to remember that no matter what you do, you are doing your best to complete it, no matter whether the result is success or failure, it doesn't matter if you fail, at least you do it with your heart and be worthy of yourself, failure can only show that you need to learn more in the future, and it can't be said that you are smart or stupid, those who are successful, not because they are smart, but their mentality is well adjusted, because even if you are smart, you can't achieve anything, ( Pride makes people lag behind).

So later in your work life, when you succeed, think about when you fail. Accumulate more rich experience and experience, adjust your mentality, don't rush because of success, so that your heart will not cause too much pressure and mistakenly feel inferior, down-to-earth to pay, in the future you will not only gain success in doing things, your experience will also be the wealth of your life

It is necessary to turn low self-esteem into self-confidence, and summarize the reasons in failure. Failure is not something to beat, the terrible thing is not to have the courage to face failure, not to learn from failure. Believe in yourself and do things in a down-to-earth manner, will success be far away?

Since you know everything, restrain yourself! Low-key, low-key! Calm down!

Fail a few more times and you'll get used to it. The same goes for success.

To do one thing, you don't have to do what others do, for example, others succeed and you have to succeed.

You can change what you expect of yourself. Of course, if you have to be successful, then you have to work hard. It's all proportional.

Success in failure, how can there be success without failure.