题目内容
Which one of the following diphthongs is not closing diphthong.
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There are five closing diphthongs in English, and they are /eɪ/, /aɪ/, /ɔɪ/, /əʊ/ and /aʊ/.
/ɪə/, /eə/, /ʊə/ are cenring diphthongs and they all glide towards /ə/.
双元音，又称“滑音”，即在发音过程中发音器官的位置或形状有所变化，从一个音滑向另一个音。
Do the underlined phonemes in the following sentence sound the same ?I’ll drive five miles on Friday night to see a flight that I like.
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