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【单选题】
二进制数10101010B转换成十六制数( )
A.
55H
B.
44H
C.
99H
D.
aaH
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【单选题】The first people to inhabit North America came from Asia. Scientists had hypothesized that these people traveled across a now-submerged landmass that connected the two continents until 14,000 years ag...
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