单项选择题

New mineral resources may be discovered during the forthcoming Antarctic_________.

A．expedition
B．excursion
C．execution
D．exposition
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单项选择题
He called this an insult to the professional _________ of teachers and declared that the obligation of the U.S. labor movement is to improve the status of teachers.
A．humidity
B．commodity
C．integrity
D．liability
单项选择题
Although the main characters in the novel are so true to life, they are certainly _________
A．imaginary
B．imperative
C．imaginative
D．imperial
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