单项选择题

All the staff members of the department made zealous efforts to clean up the hall for the Christmas party.

A．enthusiastic
B．concerted
C．gigantic
D．dedicated
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Factors leading to the crisis included poor regulation, mismanagement' and deception in the industry, and competition from other types of financial firms.
A．cheating
B．pollution
C．depression
D．abuse
单项选择题
It is not easy to remain tranquil when events suddenly change you life.
A．calm
B．upset
C．steady
D．severe
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