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
______ is an international news agency founded in ______.
A．The Associated press; Chicago
B．Reuters; Liverpool
C．The Associated press; London
D．Reuters; New York
单项选择题
Which of the following is the characteristic of hydrogen
A．It is nontoxic.
B．It has lots of vapour.
C．It doesn’t produce damaging fuels.
D．It costs less.
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