By examining popular songs of last five decades, the two researchers aim to see______.
A．why people's music preferences are diversified
B．how tempo and mode of music have changed
C．what kinds of music are most appealing now
D．how changes in music mirror our moods and views

判断题发展常模可以分为年级常模和年龄常模两类。()

未分类题Generally speaking, melancholy songs are composed in______.A．a minor key and slow tempoB．a major key and slow tempoC．a minor key and fast tempoD．a major key and fast tempo

判断题题目区分度就是题目区别被试水平能力。()

未分类题The word 'dodged' most probably means '______ ' .A．avoided something successfullyB．ran into something unfortunatelyC．shrank from something fearfullyD．initiated something purposely

判断题测量与评价的指导思想是为了创造适合学生发展的教育环境。()