单项选择题

The author's attitude toward the opinion held by Card and DiNardo is one of

A．reserved consent.
B．strong disapproval.
C．slight contempt.
D．enthusiastic support.
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单项选择题
The author seems to believe that widened wage gap can be attributed to
A．the impact of computers on routine work.
B．the delayed effects in the early 1980s.
C．the complexity of poverty problem.
D．the narrowing of the digital divide.
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