单项选择题

Which unit belongs to the Customary System

A．meter
B．kilogram
C．second
D．foot
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单项选择题
Two systems of weights and measures used in the U.S. are ______.
A．the U. S. Customary System and the metric system
B．the International System and the metric system
C．the Imperial System and the metric system
D．the Customary System and the Imperial system
单项选择题
Which of the following is the probable title of the passage
A．The British Imperial System.
B．The Customary System.
C．The International System of Units.
D．The Metric System.
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