Traditional Culture Encyclopedia - Weather forecast - How much is the listening frequency modulation of Beijing English Band 6?
How much is the listening frequency modulation of Beijing English Band 6?
FM is FM stereo with the best sound quality and can only receive local signals. Moreover, FM means that the frequency of high-frequency carrier is not a constant, but a modulation mode that changes with the modulation signal in a certain range, and its amplitude is a constant. So the signal is relatively stable.
AM is medium wave, with second sound quality, and can receive long-distance signals. AM refers to amplitude modulation, which is an electrical signal that changes from the height of sound to the amplitude. It is far away from us and is greatly influenced by weather factors. Suitable for provincial radio broadcast.
Therefore, in order to ensure the stability of the broadcast of CET-4 and CET-6, the school will adopt FM to announce the frequency before the exam, so as to facilitate the audition in advance and ensure the smooth progress of the exam.
CET-6 function:
1, CET-6 has aroused the attention of Chinese universities and relevant education departments to college English teaching and mobilized the enthusiasm of teachers and students.
A large number of statistical data and experimental materials of validity research prove that CET-6 not only has high reliability, but also has high validity, which meets the quality requirements of large-scale standardized examinations and can reflect the English level of college students in China according to the requirements of syllabus, thus effectively promoting the implementation of college English syllabus and promoting the improvement of college English teaching level in China.
2. College English Test provides an objective description of the English level of college students in China every year. Because modern educational statistical methods are widely used in CET-6 and scores are treated equally, the significance of scores in previous exams remains unchanged. Therefore, some unique teaching methods began to appear, such as New Oriental Band 6 training, item-by-item teaching, and explaining examination skills and methods, which were well received.
3. Because the CET-6 adopts the normal grading system, the results published after each exam contain a lot of information, which becomes the dynamic basis for the decision-making of educational administrative departments at all levels, and also provides feedback information for schools to take measures to improve teaching quality according to their own school's actual situation.
4. CET-6 has formed a complete system from proposition, examination, examination organization, statistical analysis to result release. This is a large-scale exam carefully organized in strict accordance with the quality requirements of standardized exams.
College English test has been recognized by the society and has become one of the standards for recruiting college graduates by personnel departments at all levels, which has produced certain social benefits.
Baidu encyclopedia-CET-6
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