单项选择题

When did the Neanderthals extinct

A．More than 30,000 years ago.
B．After 30,000 years ago.
C．Before about 35,000 years ago.
D．Some 13,000 to 14,000 years ago.
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单项选择题
Who were those toolmakers
A．Neanderthals.
B．Modern humans.
C．Archaeologists.
D．Not determined.
单项选择题
As used in the last sentence, the phrase in short' means ______.
A．in the long run
B．in detail
C．in a word
D．in the end
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