伊·斯波索賓等合著《和聲學教程》第四章「用正三和絃爲旋律配和聲」習題1.(11) 。永值生作答，第一次訂正。br Exercise 1.(11) on Chapter 4 “Harmonising Melodies in Tonic Triads” of “Harmony Textbook (Учебник Гармонии)” by I. Sposobin et al. Answered by the YongZ.S., First Revision.