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Verbal·Craft and Structure·Words in Context
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The Apollo Moon landings (1969–1972) brought atmospheric sensors and seismic sensors to the Moon and produced large amounts of data. Researcher Renee Weber, who is investigating tectonic activity on the Moon, continues to use Apollo’s data, demonstrating that the missions’ value to science is __________.
Which choice completes the text with the most logical and precise word or phrase?
A
displaced
B
ongoing
C
original
D
controversial