单项选择题

An international treaty signed several years ago bans trade in plants and animal of endangered species.

A．forbids
B．eliminates
C．promotes
D．protects
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单项选择题
The young man asked his parents not to worry because he was full of optimism about his career.
A．motivation
B．confidence
C．imagination
D．resolution
单项选择题
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
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