【判断题】The structure of the sound system involves not only the vowels and consonants --- the segmental features, but also stress and intonation --- the supra-segmental features.()
【单选题】病人,男性 ,33 岁。腹股沟斜疝术后取仰卧位,腘窝部垫 枕,最主要的目的是( )
【单选题】Another difference in the pronunciation of consonants is that when /t/ is between the ________ in stressed and unstressed syllables, it is read as /d/in ________.
【单选题】病人,男性,33岁。腹股沟斜疝术后取仰卧位,腘窝垫部垫枕,最主要的目的是
【简答题】各种蛋白质()元素含量比较相近,平均为(),利用蛋白质的这个特征估算蛋白质的方法称为()。