A(n)_________is a unit that is of distinctive value. It is an abstract unit, a collection of distinctive phonetic features. A. phone B. sound C. allophone D. phoneme
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【简答题】Simplified words are commonly used in telex messages because the charge for a telex is based on( ).
【简答题】______ is used primarily in intemational trade. It commonly referred to as the draft or the bill. And it is most frequently used in the payment against a letter of credit (L/C). It is also used in the...