题目内容
数据库设计分为六个阶段:____.
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“三分____,七分____,十二分____”是数据库建设的基本规律。
Which of the following letters can be pronounced as /ŋ/ ?
To pronounce /n/ and / ŋ /, we both need to raise our tongue tip to the roof of the mouth.
To make /n/, the air goes through the nasal cavity, while to make /l/, the air goes through the mouth.
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