单项选择题

______ refers to a sociolinguistic situation two varieties of a language exist side by side throughout the community, with each having a definite role to play.

A．Dialect
B．Diglossia
C．Pidgin
D．Creole
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单项选择题
Government officials ordered a plant in Japan to halt production because _____.
A．its product left people with food poisoning
B．the plant is going bankrupt
C．its milk products don’ t sell well
D．it has too limited a production which only serves 8,000 people
单项选择题
_____ is not one of the symptoms after drinking low ’ fat milk produced by Snow Brand Milk Products Co. Ltd.
A．Headache
B．Stomache pains
C．Bowel disturbance
D．Vomiting
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