2~4岁普通话儿童前注意阶段的声调感知机制
杨婉晴, 肖容, 梁丹丹
Lexical tone perception mechanism in 2- to 4-year-old Mandarin-speaking children in the pre-attention stage
YANG Wanqing, XIAO Rong, LIANG Dandan
图3
全部刺激的频谱图