带泵交流发电机一般用在汽油机上。
A. 对
B. 错
The consonant /n/can be described as ____.
A. bilabial; nasal
B. alveolar; nasal
C. velar; nasal
D. palatal; nasal
The vowel /u:/ in/fu:d/(food) is a(an) ____ vowel.
A. back
B. front
C. unrounded
D. central
/i./,/i/,/e/ areall ____ vowels.
A. front
B. central
C. back
D. high