单项选择题

What does the passage mainly discuss

A．Why we measure time the way we do.
B．Ways of measuring time.
C．The development of universal time.
D．How time is measure
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单项选择题
The author mentions all of the following ways to measure time EXCEPT ______.
A．sundial
B．electric clock
C．hourglass
D．mechanical clock
单项选择题
With which of the following statements would the author be most likely to agree
A．The ancient Babylonians used 12 as a basic division of time because they believed the sun moved around the Earth.
B．If we revise the way we measure time, we should use a division of 10 rather than 12.
C．Ways of measuring time have changed in response to human need and technological development.
D．Universal Time is so named because it can be applicable throughout the univers
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