单项选择题

A．enterprises
B．employment
C．professions
D．industries
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单项选择题
A．In additionB．For exampleC．Above allD．In short
A．In addition
B．For example
C．Above all
D．In short
单项选择题
A．producedB．createdC．improvedD．facilitated
A．produced
B．created
C．improved
D．facilitated
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