目录 Practice 1 /?/ 与/i Practice 2 /?/ 与/u Practice 3 /?/ 与 Practice 4 /?/ 与/ɑ Practice 5 /e/ 与 Practice 6 /?/ 与 Practice 7 /e?/ /a?/ 与 Practice 8 /??/ 与/a Practice 9 /??/ /??/与/e Practice 10 /p/ 与/b Practice 11 /t/ 与/d Practice 12 /k/ 与/ɡ Practice 13 /m/ /n/ 与 Practice 14 /h/ 与 Practice 15 /f/与/v Practice 16 /s/ 与 /z Practice 17 /θ/ 与/e Practice 18 /?/ 与 Practice 19 /w/与 /j Practice 20 /l/与 /r Practice 21 /t?/ 与/d Practice 22 /tr/与 /dr Practice 23 /ts/ 与/dz 参考答案
以下为对购买帮助不大的评价