Nhận biết (M1)

The Antikythera mechanism, recovered from an ancient shipwreck off the coast of Greece, is an intricate assembly of bronze gears dating to roughly the second century BCE. Only after its heavily corroded fragments were examined with modern imaging techniques did researchers determine that the device was an astronomical calculator able to predict the positions of the sun and moon and the timing of eclipses. No comparably complex instrument is known from the following thousand years.

According to the text, which of the following is true of the Antikythera mechanism?

• A.

  It could predict the positions of the sun and moon and the timing of eclipses.

• B.

  It was constructed roughly a thousand years after the shipwreck that carried it.

• C.

  Its purpose was understood before it was ever recovered from the shipwreck.

• D.

  Instruments of comparable complexity were common in the centuries that followed it.