单相变压器高、低压侧电压同相位时，连接组别为（）；反相位时，连接组别为（）。
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Which is the commonly accepted definition of “Linguistics” ?
A. The scientific social science of language
B. The scientific learning and teaching of language
C. The scientific study of language
D. The prescriptive study of language
______ is considered as “father of modern linguistics”.
A. Bloomfield
B. Jackobson
C. Aristotle
D. Saussure
“______” is a word in English which is onomatopoeic.
A. Walkman
B. Waterloo
C. Ticktack
D. Seesaw
Language is a system of arbitrary vocal symbols for human ________.
A. contact
B. communication
C. relation
D. community
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