中国大学MOOC: Which of the following are vowels?
举一反三
- 中国大学MOOC: Which of the following statements is/are correct about vowels?
- 中国大学MOOC: In the following vowels, are back vowels.
- 中国大学MOOC:"In the following groups of vowels, are mid vowels.";
- 中国大学MOOC:" In the following groups of vowels, are not all front vowels.";
- Which of the following are vowels? A: /ʃ/ B: /a/ C: /i/ D: /ɛ/