单项选择题

Which of the following is a CORRECT definition of a phone

A．It is a phonological unit.
B．It is a speech sound.
C．It is an abstract sound feature.
D．It is an actual realization of a phoneme.
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单项选择题
The study of the way in which sound symbols are arranged to form words is ______.
A．psycholinguistics
B．historical linguistics
C．morphology
D．semantics
单项选择题
______ refers to a marginal language of few lexical items and simple grammatical rules, used as a medium of communication.
A．Creole
B．Lingua Franca
C．Dialect
D．Pidgin
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