单项选择题

How many kinds of devices are mentioned in the passage which can measure time

A．3.
B．4.
C．5.
D．6.
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单项选择题
How did he succeed according to himself.
A．By helping others.
B．By being approachable and caring.
C．By being persistent and not satisfied with just coming to work.
D．By having great ambitions.
单项选择题
Why did the William Milam delivered a stern message to his Taleban counterpart
A．The Taleban forces has attacked some US targets.
B．The Taleban forces has attacked some Israeli targets.
C．The Taleban refused to deliver Osama bin Laden to US.
D．Bin Laden followers were planning terrorist strikes against US targets.
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