Regarding rime types, our results of mean F0 and F0 difference supported Xu's (1998) argument that the tonal alignment "is not affected by the internal structure of the syllable in any direct way, further confirming the hypothesis that the syllable is the only relevant unit for the alignment of lexical tones in Mandarin"(p.200).
in terms of turning point, VG had a significantly later turning point than V, and VN had significantly earlier turning point than V. Further research can more clearly reveal the relationship between the turning point and the intrasyllabic structure.