Sound of Music Frequencies: Beijing FM90.0, Shanghai FM107.7, Guangzhou FM87.4, Taiyuan FM89.3, Lhasa FM96.1, Hohhot FM99.1, Nanning FM106.2, Yinchuan FM99. 7. Shenyang FM99.8, Hangzhou FM103.2, Wuhan FM105.8, Tianjin FM92.5, Nanchang FM87.2, Xining FM100.6, Xiamen FM105.2, Zhengzhou FM104.1, Haikou FM105.8, Jinan FM89. 8. Shijiazhuang FM105.1, Hefei FM91.1, Qingdao FM98.0, Xi'an FM90.0, Guiyang FM107.3, Lanzhou FM88.3, ??Changchun FM91.6, Harbin FM95.8, Fuzhou FM92.6, Changsha FM107. 0. Kunming FM93.0, Chengdu FM107.6, Nanjing FM98.9, Quanzhou FM102.5, Zhuhai FM101.2. The above is the planned one. The following is the currently opened Central People's Broadcasting Station MusicRadio, Beijing FM90.0, Shanghai FM107.7, Guangzhou FM87.4, Taiyuan FM89.3, Lhasa FM96.1, Hohhot FM99.1, Nanning FM106.2, Yinchuan FM99.7, Shenyang FM99.8, Hangzhou FM103.2, Wuhan FM105.8, Tianjin FM92.5

The general process of inquiry starts with discovering and asking questions. After discovering the problem, you make assumptions about the answer to the question based on your existing knowledge and life experience. Design research plan, including material selection, design method steps, etc. Conduct research according to the research plan, obtain the results, and then analyze whether the results are consistent with the assumptions to draw conclusions. Not all questions can be answered in one go. Sometimes, wrong conclusions may be drawn due to imperfect research methods. Therefore, after drawing the conclusion, it is necessary to reflect on the entire inquiry process. The general method steps of inquiry experiments: ask questions, make hypotheses, formulate plans, implement plans, draw conclusions, express and communicate.

Commonly used methods in scientific inquiry include observation, experiment, survey and data analysis.

Observation is a basic method of scientific inquiry. Scientific observation can be done directly with the naked eye, or with the help of instruments such as magnifying glasses and microscopes, or by using tools such as cameras, video recorders, and video cameras. Sometimes measurements are also required. Scientific observation must have a clear purpose; the observation must be comprehensive, meticulous, realistic, and recorded in a timely manner; it must have a plan and be patient; it must think actively and record in a timely manner; it must exchange views and discuss. The design of the experimental plan should closely focus on the questions and hypotheses raised. When studying the impact of a condition on the research object, an experiment in which other conditions are the same except for this condition is called a controlled experiment. General steps: discover and ask questions; collect information related to the problem; make hypotheses; design experimental plans; implement experiments and record them; analyze experimental phenomena; draw conclusions. Investigation is one of the common methods of scientific inquiry. When conducting an investigation, you must first clarify the purpose and objects of the investigation, and formulate a reasonable investigation plan. During the investigation process, sometimes because the scope of the investigation is very large, it is necessary to select a part of the survey objects as samples. Keep truthful records during the investigation process. The results of the survey must be organized and analyzed, and sometimes mathematical methods must be used for statistics. Collecting and analyzing data is also one of the common methods of scientific inquiry. There are many ways to collect data. Go to the library to check out books, periodicals and newspapers, visit relevant people, and search online. The form of data includes text, pictures, data, audio and video materials, etc. The information obtained should be organized and analyzed to find answers and clues.