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【单选题】As countless photos from space can prove, the Earth is round the "Blue Marble," as astronauts have affectionately dubbed it. Appearances, however, can be deceiving. Planet Earth is not, in fact, perfe...
A.
A number of photos from space show us that the earth is not round.
B.
People think the earth is fiat, since its appearance deceived people.
C.
Aristotle denied that the earth is flat, basing on the fact that Columbus sailed the ocean.
D.
Tile fact that ships appeared smaller when they sailed away showed the earth is round.