搜题
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第1题

The most important part of the brain is the outside surface of the brain, call __________. A.the neurons B.nerve pathw
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第2题

There is a gradation of ________ ranging a continuum between two extremes of very formal and very informal. A.dialect
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第3题

Sciolinguists have concentrated on the language used by an individual which is known as the ________. A.dialect B.soci
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第4题

When a _____ comes to be adopted by a population as its primary language, and children learn it as their first language,
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