For 130 years, the kilogram was defined by a physical object: a platinum-iridium cylinder stored in a vault near Paris, against which the world’s standard masses were periodically compared. the meter has been defined since 1983 not by any object but by the distance light travels in a vacuum during a specified fraction of a second.
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Verbal·Expression of Ideas·Transitions
easyWhich choice completes the text with the most logical transition?
A
Similarly,
B
Consequently,
C
That is,
D
By contrast,