单项选择题

The word "expertise" in line 3 could be best replaced by

A．"experts".
B．"scientists".
C．"scholars".
D．"special knowledge".
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单项选择题
What factor can be attributed to German prosperity
A．Technology transfer.
B．Good management.
C．Hard work.
D．Fierce competition.
单项选择题
When was the Fraunhofer Society founded
A．In i940.
B．Last year.
C．After the unification.
D．In 1949.
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