单项选择题

From cave paintings and from ______ on bone and reindeer horn, it is known that prehistoric humans were close observers of nature who carefully tracked the seasons and times of the year.

A．apparently regular scratches
B．scratching apparently regularly
C．regular scratches apparently
D．scratches regular apparently
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单项选择题
______that carried the tradition of 19th-century American Realism to perhaps its highest level of achievement.
A．Thomas Eakins
B．It was the painter Thomas Eakins
C．Thomas Eakins" paintings
D．Why it was Thomas Eakins
单项选择题
Perhaps we should think in terms of raising interest rates______them, in consideration of the new reports about inflation reported last June.
A．then reducing
B．and reduce
C．although reduce
D．rather than reducing
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