Question 2: Is there an idiom of academic incompetence? Four-character words or sentences are not necessarily idioms, but they are said more often.
Question 3: What does it mean to be proficient in learning? Not refined: Not profound or proficient.
If you are proficient in learning, then you have nothing to be proficient in knowledge and learning.
Question 4: What is academic? Academic problems are often theoretical problems of a certain discipline. The views expressed by researchers around the discussion of theoretical problems in this discipline are generally academic.
Question 5: Curriculum design topics, academic proficiency is really not good. Thank you for your help! problem description
It is known that there are n kinds of articles and a backpack that can hold the weight of m, and the weight of each article I is W. Assuming that a part of article I is put into the backpack, PIXi will get the income, where o≤Xi≤ 1, pi >；; 0。 What kind of packaging can maximize the total income of the items in the backpack?
problem analysis
Firstly, the mathematical model of this problem is established:
Maximize: (1)
Constraints: (2)
Where (1) is the objective function and (2) and (3) are the constraints. Any *** (x 1…xn) that satisfies the constraints is a feasible solution (that is, it can be loaded), and the feasible solution that maximizes the objective function is the optimal solution.
Example 1. Consider the following knapsack problems: n=3, M=20, (p 1, p2, P3) = (25 25,24, 15), (W 1, W2, W3) = (18). The four possible solutions are
(xl, x2, x3) Total capacity and total revenue
? ( 1) ( 1/2, 1/3, 1/4) 16.5 24.25
? (2) ( 1,2/ 15,0) 20 28.2
? (3) (0,2/3, 1) 20 3 1
? (4) (0, 1, 1/2) 20 3 1.5
Every time an article is loaded, it is necessary to make every unit capacity occupied by it obtain the maximum unit benefit at present. This requires that the loading order of goods should be considered in the order that the PI/Wi ratio does not increase. The measure under this strategy is the ratio of the cumulative income value of the loaded project to the capacity used. Its measurement standard is to increase or at least decrease the ratio of accumulated benefit value to used capacity at most each time (the ratio may be reduced by the second and subsequent loading). This greedy strategy is applied to the data of the instance 1, and the solution ④ is obtained. If the objects are classified according to the non-increasing order of PI/WI in advance, the greedy knapsack process can get the solution of the knapsack problem under this strategy.
Algorithm description
Greedy knapsack process (p, w, m, x, n)
Real P( 1:n), w( 1:n), x( 1:n), m, Cu; M is the capacity of the backpack, and x (1: n) is the solution vector.
Integer I, n;
Sort(p，w)； The benefit values and weights of n projects sorted by P (I)/WI ≥ P (I+1)/W (I+1) form new P (1: n) and W (1); n).
Xcu then exits endif.
Xi & gt；
Question 6: What is the meaning of "going out of business and losing essence" in Su Wenshu's five comments on Neijing? There are three kinds of diagnosis, you must ask the nobility, seal the monarch and lose the injury, want to be king? Therefore, if something happens to you, although you don't do evil, you will suffer internal injuries and your reputation will be ruined.
Your books are much less.
Awaken from the camp, lose sperm, lose ambition.
Emotional depression, the qi of the five internal organs is not comfortable, it is a disease, and it is in one place, such as thinking hurts the spleen and anger hurts the liver. The doctor didn't know the cause when he diagnosed. He saw that the disease was not in the zang-fu organs, and his shape and body remained unchanged, so he suspected it and didn't know the name of the disease. The body is getting worse and worse, and the essence is getting worse. Spilled is afraid of the cold, and if you are afraid, you will be afraid. If you are very ill, you will consume Wei Qi outside, so you will spill it and catch the blood inside, so you will be frightened. A good worker is hopeless because he didn't know his illness at first. This is also one of the reasons for delaying medical treatment.
The yellow emperor said: before making a diagnosis, ask the patient about his life. If it is expensive first and then cheap, even if he doesn't feel the external evil, he will get sick from the inside. This disease is called "desertion". If you become rich first and then poor, this disease is called "nocturnal emission", because the qi of the five internal organs lingers and accumulates into a disease. The doctor diagnosed the disease. At the early stage of the disease, because the disease is not in the zang-fu organs and the shape has not changed, doctors often diagnose and doubt it. I don't know what that is. After a long time, the body gradually loses weight, and qi deficiency leads to insufficient vitality. When the illness is serious, the true qi is consumed, the yang is weak, and the heart is cold and timid. The reason for the aggravation of the disease is that it consumes the spirit of external defense and robs the blood of internal camp. If you don't know the patient's condition and the cause of the disease, even the most skilled doctor can't cure the disease. This is the first fault in diagnosis and treatment.
When you want to diagnose and treat a disease, be sure to ask about the patient's diet and living environment, whether there is sudden spiritual joy, sudden sadness, or pleasure before pain, because sudden sadness and pleasure will damage the essence, stop the essence and ruin the body. Anger hurts yin, sudden joy hurts yang, and both yin and yang are hurt, which makes people feel rebellious, the meridians are full, and the gods drift past and leave the body. When doctors with poor medical skills diagnose and treat this disease, they can't use the purgative method correctly and don't understand the condition, which leads to the gradual dissipation of essence and the accumulation of pathogenic factors. This is the second mistake in diagnosis and treatment.
A doctor who is good at feeling the pulse will certainly be able to distinguish between strange diseases and common diseases, calmly analyze and know the condition. If the doctor doesn't understand this truth, his diagnosis and treatment technology is worthless, which is the third mistake in diagnosis and treatment.
When making a diagnosis, we should pay attention to three situations, that is, we must ask their social status, whether they have been demoted from power and influence, and whether they have the delusion of being a vassal. Because of his noble status, he will feel very depressed after losing power. Although he has no external evil, his body is bound to perish because of internal mental damage. People who become rich first and then poor, although not harmed by evil spirits, will also have withered fur, exhausted, unable to cramp their feet and unable to walk. For this kind of patients, if doctors can't seriously enlighten and change their mental outlook, but blindly obey and let it develop, it will be chaotic, abnormal, unable to change their illness and ineffective in treatment. This is the fourth fault in diagnosis and treatment.
In the diagnosis and treatment of diseases, it is necessary to understand the initial stage and current situation of diseases, as well as the origin and end of diseases. In pulse diagnosis, we should combine the physiological and pulse characteristics of men and women. If you miss the separation of your loved ones, your emotions will be difficult to understand, and you will worry about your emotions, leaving the five internal organs empty and qi and blood separated. If doctors don't know these truths, what diagnosis and treatment techniques are there? Once a person with rich taste loses his wealth, his mind will be greatly hurt and his bones and muscles will be seriously damaged. Although his body can move, body fluids no longer reproduce. If the old wound is broken, the blood gas will stay and gather, which will turn into heat and return to Yang. If it lasts for a long time, it will become pus, and pus and blood will accumulate, causing people to suffer from cold and heat. Rough treatment of this disease, due to fatigue and pus accumulation, repeatedly stabbed its yin and yang meridians, making its qi and blood more deficient, causing its body to slack off and its limbs to twitch, and its death is not far away. The doctor couldn't argue clearly about it, and didn't ask about its cause. He just said it was critical. This is the fifth mistake made by the rude doctor in diagnosis and treatment.
The above five kinds of mistakes are all caused by doctors' poor academic knowledge and unclear human feelings. Therefore, when a saint treats a disease, he must understand the changes of Yin and Yang in nature, the law of four seasons of cold and heat, the relationship between internal and external organs, the exterior and interior of meridians, the suitability of acupuncture and moxibustion, stone cutting and poison for treatment, be able to carefully observe human feelings and things, and have the usual way of diagnosis and treatment. From the perspective of the patient's wealth, we can distinguish between his physical sanctions and the characteristics of the disease, and ask his age and age. When treating diseases, we should pay attention to the vitality of patients ... >>