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
As used in the 3ut paragraph of this passage, the word documnted means ______.
A．numbered
B．recorded
C．legal
D．believable
单项选择题
Which of the following state statements is NOT true
A．The Customary System originated from the British Imperial System.
B．The Customary System has just been used in daily time.
C．The metric system was specifically sanctioned by Congress in 1866.
D．From 1964, using the units of the International System has been the policy of the National Bureau of Standards.
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