There are two syllables in the word 'motto'. /ēü/ occurs in both syllables， but the first one is longer than the second because __________.
A.it is stressed
B.it comes before a consonant
C.it is in the first syllable
D.it comes between two consonants

A.A.it
B.it
C.it
D.it

【参考答案】

A
解析：考查语音教学。motto的发音中第一个／au／K于第二个／au／，是因为重音在第一个／au／上。