单项选择题

How many key comparisons are needed in searching for key value 38

A．1
B．2
C．3
D．4
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单项选择题
Load factor α of the hash table is approximately
A．0.28
B．0.35
C．0.54
D．0.71
单项选择题
In a computer,if a logical left shift of the operand occurs,its lowest bit is
A．1
B．unchanged
C．0
D．random
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