单项选择题

The __________ of forged banknotes posed a threat to our normal economic life.

A．collaboration
B．deficiency
C．circulation
D．justification
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单项选择题
An individual nerve cell usually has a large cell body and a __________ nucleus.
A．cohesive
B．immature
C．conscientious
D．conspicuous
单项选择题
Students will find the book __________ as it offers an abundance of information on the subjects.
A．forthcoming
B．enlightening
C．irritating
D．appalling
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