The word stress, but not the sentence stress, distinguishes meaning in English.
查看答案
A phoneme in one language or one dialect may be an allophone in another langauge or dialect.
A. 对
B. 错
The initial sound of "peak" is aspirated while the second sound of "speak" is unaspirated . They are allophones
A. 对
B. 错
小孩能够自己进食，正确排泄，说明他解决了（）冲突？
A. 勤奋与自卑
B. 主动与内疚
C. 自主与羞怯
D. 信任与不信任
婴儿依恋的发展阶段（）
A. 无社会性阶段
B. 特定依恋期
C. 无差别依恋阶段
D. 多重依恋期
微信支付 
支付宝支付