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Professor Xu Kewei of Chang 'an University

2026-11-11 10:17
2026-11-11 11:57

Xu Kewei, born in May 1960, is from Wuwei City, Gansu Province. In 1982, he graduated from the School of Chemistry of Lanzhou University with a bachelor's degree in physical chemistry. He is now an associate professor at the School of Science of Chang 'an University. He had been engaged in chemistry teaching and research. His main research fields included applied chemistry, surface chemistry, pavement materials, and so on. He taught three professional basic courses for graduate students and undergraduate students. His address was Department of Chemistry and Materials Science, School of Science, Chang 'an University, Middle Section of South Second Ring Road, Xi'an City, 710064. His email address was hxjys @ chd.edu.cc. His work phone number was 029 - 82334820. Read more exciting novels for free

Latest Questions

The background of Da Feng's night watchman

The setting of Dafeng Nightwatchman was set in the ancient Xianxia world. This was a virtual world with a strong ancient background. From the perspective of mortals, there was a complete emperor regime, a top-down official system, and a supervisory organization. In this world, there were demons other than humans. However, they did not appear much, but they had enough scenes. At the same time, there was an alchemist organization that was similar to scientists. Ordinary people could choose to practice martial arts and become martial artists or take the Confucian path of studying. Of course, there was a threshold in the advancement of cultivation. Many people spent their entire lives just strengthening their bodies. In addition to Confucianism, there were also settings of Buddhism and Taoism in the text, but there was little description of Buddhism and Taoism. It mainly talked about things related to Confucianism. For example, Confucianism had a setting similar to the " bragging ability ", and Confucians had a special liking for poetry. The night watchmen belonged to the Dafeng court and were involved in reconnaissance, arrest, interrogation, and other activities. They also participated in collecting military intelligence and instigating enemy generals. They were the intelligence organization of the royal family and the guillotine hanging over the heads of all officials. While waiting for the TV series, you can also click on the link below to read the classic original work of "Dafeng Nightwatchman"!

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2026-11-11 10:35

How to set the image size of the ps path to be consistent

1. He opened up the main interface of the Adobe Photoshop. 2. He entered the main interface of the Photoshop and clicked on the edit menu. 3. Choose the preferences option from the edit menu. 4. Choose the reference line, grid, and slice. 5. In the preferences, select the reference line, grid, and slice. 6. Find the path, choose the path. 7. Choose the size. 8. Finally, he clicked 'Confirm.' <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-11-11 10:35

Can a man's beard be permanently removed?

A man's beard can be permanently removed. At present, the commonly used method is laser hair removal. The photothermal effect of the laser pierces through the skin to damage the local hair Follicle tissue, causing hair to be unable to grow. After continuous laser hair removal for 3 - 5 times or more, there is no need to use laser hair removal again for several years and the desired effect can be achieved. In addition, the use of an electric current to vaporize cells and tissues inside the hair Follicle to ensure that the hair Follicle would not regenerate and achieve permanent hair removal. However, this method had risks such as infection, edema, and redness of the skin. The chemical could also be used as a hair removal agent to help remove the beard, but it had side effects and could easily cause skin irritation, irritation, and damage. He could also remove his beard through surgery, including hair and eyebrow transplants, but the surgery was risky. While waiting for the TV series, you can also click on the link below to read the original work of " Little Fox Demon Matchmaker " to understand the plot in advance!

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2026-11-11 10:34

Ocean Blue Mystery, check the authenticity, sweep

The anti-counterfeit code of Ocean Blue Mystery was on the instruction manual of the box. The anti-counterfeit code could be seen at the bottom of the instruction manual. The anti-counterfeit code was unique and could not be repeated. It could be used to verify the authenticity of the product through WeChat, AliPay, and other functions. After the consumer received the instruction manual, they could directly use their mobile phone to check the authenticity. In addition, one could also log into Ocean Blue Mystery's official website, find the anti-counterfeit inquiry page, and enter the anti-counterfeit code, batch number, production date, and other information of the product according to the prompt on the page (these information could usually be found on the product's packaging box, bottle, label, or instruction manual) for inquiry and verification. One could also log into the official website of the "China commodity information verification center", enter the anti-counterfeit code directly on the page, and click on the inquiry. The novel "Gilded Palm" is equally exciting. Everyone is welcome to click and read it!

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2026-11-11 10:34

Lu Jiaojiao, Shen Zhiyi, Time Travel

I don't know how to answer according to the information I found. The original novel of the TV series " The Unique Empress of Generals " was called " The Rebirth of the Poisonous Empress of Generals." The original plot was equally exciting. You can click on the link below to read the original novel.

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2026-11-11 10:33

Design template and reflection of junior high school physics current inquiry teaching

The following is a junior high school physics current exploration teaching design template: ** 1. Teaching objectives ** #(1) Knowledge and Skill Target 1. Students can have a deep understanding of the concept of electric current, be familiar with the unit of electric current and its conversion relationship, and be able to accurately say common electric current values. 2. Familiar with the structure of the ammeter and master the correct method of using the ammeter to measure the current value. #(II) Method, process, and goal 1. By exploring the concept of electric current and carefully reading the instruction manual of the ammeter, it can effectively improve the self-learning ability. 2. In the process of observing the electric current, he gradually cultivated his keen observation ability. 3. Through practicing the usage of the ammeter, he could continuously improve his hands-on operation ability. #(3) Emotional attitudes and values, goals 1. In the process of experimental exploration, through the successful experience to stimulate a strong interest in learning. 2. Learn to work closely with the group members to develop a rigorous and scientific learning attitude. ** 2. Important and Difficult Points in Teaching ** #(I) Teaching Focus 1. Thoroughly understand the concept of electric current, including its size, unit, etc. 2. Proficient in the use of ammeter, covering the connection method of ammeter, range selection, reading method, etc. #(II) Difficulties in Teaching 1. Accurately understand the relationship between the amount of electric charge and time in the concept of electric current, that is, the calculation formula of current intensity (I = Q/t). 2. The measuring range of the ammeter could be reasonably selected according to the actual measured current, and some common wrong operations could be avoided during the use process, such as the positive and negative terminal being connected in reverse, and the measured current exceeding the measuring range. ** 3. Teaching Method ** Teaching method, experiment method, discussion method, and inquiry method were combined. ** 4. Teaching process ** #(1) Introduction of the scenario (about 5 minutes) 1. Show a simple circuit that lacks power. The light bulb doesn't light up after the switch is closed. Guide the students to think about the reason why the light bulb doesn't light up. 2. He raised the question,"In the circuit, what factors determine whether the light bulb will light up?" This led to the concept of electricity. #(2) Self-learning (about 10 minutes) 1. Let the students study the part about the concept of electricity in the textbook (for example, page 52 of the textbook) and complete the related questions on the tutorial (questions 1 - 3). 2. Please read the answers to some of the questions and explain the conversion of electric current units to your classmates. 3. Guide the students to learn the current of common electrical appliances on their own (lower left corner of page 53 of the textbook), and then consolidate the content through two simple training questions. #(3) Understanding the ammeter (about 10 minutes) 1. Show the ammeter and ask the students how to measure the current of the common electrical appliances mentioned before. 2. Students were required to carefully observe the ammeter and find its important components, such as the zeroing knob, the terminal, the measurement range, etc., and complete the part on the structure of the ammeter on the tutorial. 3. Show the students the reading of two ammeters. Let the students try to read the ammeters. #(4) Use of ammeter (about 15 minutes) 1. Guide the students to learn the part of the textbook about the use of the ammeter (page 53). Complete the content about the use of the ammeter on the tutorial. After completing it, communicate with each other. 2. Students are invited to share their own summary of how to use the ammeter, and the teacher will supplement and improve it. 3. Show a simple circuit diagram. Have the students connect the circuit according to the circuit diagram in pairs. Use an ammeter to measure the current passing through the light bulb and record the data. During the student's experiment, the teacher would patrol and guide the students to find and solve the problems encountered by the students in time. #(5) Inductive summary (about 5 minutes) 1. Guide the students to review what they have learned in this lesson, including the concept of electric current, the unit, the structure of the ammeter, how to use it, and the gains from the experiment. 2. Students are asked to make a summary by themselves, then discuss in the group, and finally, the group will send a representative to answer. #(6) Assignment Arrange some after-school exercises related to the concept of electric current and the use of an ammeter. For example, the written homework could be to let the students calculate the current under a given amount of charge and time. The practical homework could be to let the students measure the current of a simple electrical device (such as a flashlight bulb) when they go home. ** 5. Reflection on Teaching ** #(I) Success 1. Through the introduction of the situation, starting from the circuit phenomenon that the students were familiar with, it could effectively stimulate the students 'curiosity and thirst for knowledge, so that they could actively participate in the classroom learning. 2. In the teaching process, a variety of teaching methods were combined to give students sufficient self-learning space, such as self-learning the concept of electric current, common electric current values, and the use of ammeters. This helped to cultivate students 'self-learning ability. At the same time, the experimental operation segment allowed the students to experience the use of the ammeter, which improved their hands-on ability and teamwork. 3. In dealing with the important and difficult points of teaching, they adopted a step-by-step guidance and in-depth method. For the important and difficult parts of the concept of electric current, it was explained through simple life examples (such as water flow analogy electric current) to help students better understand. In the teaching of the use of the ammeter, from understanding the structure of the ammeter to the actual operation, and then to the summary, the students gradually mastered the use of the ammeter. #(II) Inadequacies 1. In the self-learning segment, some students might not be able to efficiently complete the tasks on the tutorial plan due to their weak foundation or inappropriate learning methods. In the future, he could strengthen the individual guidance for these students or provide some guidance on learning methods to the students in advance. 2. In the experimental operation section, although some students 'problems were solved in time during the inspection, some students still had difficulties in selecting the ammeter range and reading. In the next lesson, he could add some special exercises on range selection and reading, and emphasize the key points of operation again before the experiment. 3. There was still a need to further improve the control of classroom time. It took a lot of time to explain the use of the ammeter and the students 'experiments, resulting in the final summary section being a little rushed. It did not allow the students to fully express their learning gains and experiences. In the future, he needed to arrange the time for each teaching session more reasonably. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-11-11 10:33

The Most Mysterious Burial Man's novel is free to read and download

Based on the information provided, they only knew that The Burial Man was a supernatural suspense novel that was first published in Tianya Literature, but there was no information about it being free to read and download. I'm sorry, but I don't know how to answer based on the information I found. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-11-11 10:32

Dark harem novels are free to read.

The following were some dark harem novels: " The Female Empress's Personal Servant ". The main character reincarnated into the fantasy novel world to become the villain. He had a certain connection with the female empress. It was a fantasy, villain, relaxed, harem, and system novel. There were also " The Best of the Best "," Getting Married with Medicine "," The Doomsday Misous People "," The Doomsday Emperor's Growth "," Rebirth as a Boss "," The Most Palace Fight "," Daily Life in the Harem "," The Harem is Like a Concubine "," The World of Harem Women "," The Ferocious Empress "," Sheng En..." It was also a dark harem novel. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

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2026-11-11 10:32

Zhang Wanyi Fashion Bazaar

Zhang Wanyi had shot two fashion Bazaar blockbusters. One group was working with Yang Zi, who was mainly in the denim style and had a sense of fashion. The other group was filming a blockbuster with Yang Zi in an ancient style. They wore gorgeous ancient costumes, with exquisite hairstyles and makeup, showing the charm of classical beauty. Their performance in the blockbuster showed superb acting skills and excellent fashion taste. The original novel of the same name in the TV series "Beautiful Brocade" is the original work of Willow Leaves in Winter. The original plot is equally exciting. You can click on the link below to read the original novel.

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2026-11-11 10:32
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