单项选择题

_______ is made up from the first letters of the name of an organization, such as CIA, PLO, MIT.

A．Abbreviation
B．Acronym
C．Back-formation
D．Analogical creation
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单项选择题
Wilkins Micawber is a character in the novel ______, an eternal optimist who, despite evidence to the contrary, continues to have faith that something will turn up.
A．Great Expectations
B．David Copperfield
C．Oliver Twist
D．A Tale of Two Cities
单项选择题
The word bird used to mean young bird ; today it means any kind of bird . This is called ______ in terms of semantic change.
A．broadening
B．narrowing
C．meaning shift
D．class shift
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