单项选择题

Mario was awarded the medal for displaying professional ______ of the highest order in the rescue attempts two weeks ago.

A．solution
B．supervision
C．intelligence
D．competence
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单项选择题
Gaining acknowledgement from fellow workers and managers gives a person a sense of importance in society.
A．admittance
B．permission
C．recognition
D．denial
单项选择题
Mr. Bridges mentioned briefly several other subjects in the course of his talk but mostly kept himself to the main topic.
A．touched off
B．touched down
C．touched on
D．touched up
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