_______ is a branch of linguistics which studies the internal structure of words and the rules by which the words are formed.
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Voicing is a feature of all consonants and some vowels.
A. 对
B. 错
The orthographic representation of speech sounds with diacritics is normally not used in dictionaries and teaching textbooks.
A. 对
B. 错
Although the [l] sound is represented by the same symbol in the two combinations of [li:f] and [fi:l], it is actually pronounced differently.
A. 对
B. 错
【单选题】下列属于单糖的是
A. 蔗糖
B. 乳糖
C. 葡萄糖
D. 糖原