The vowel is produced without (or with little) restriction during its production and is always voiced.()
查看答案
灌砂筒放在试坑上并打开开关后,当轻敲筒壁三次砂流入试坑,则关闭开关。
A. 对
B. 错
The Silent Way, Community Language Learning, and Suggestopaedia all lay emphasis on the individual and on personal learning strategies.()
A. 对
B. 错