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Passage 6

Questions 26 to 30 are based on the following passage.

  • Alcatraz Island, sometimes referred to as the Rock, is a small island located in the middle of San Francisco Bay in California. It served as a lighthouse, then a military fortification (要塞), then a military prison followed by a federal prison until 1963.&
  • Due to its isolation from the outside by the cold, strong, dangerous currents of the waters of San Francisco Bay, Alcatraz was used to house Civil War prisoners as early as 181. In 1898, the Spanish-American war would increase the prison population f
  • Alcatraz Island was first used as ______.
  • A.a lighthouse
  • B.a federal prison
  • C.a military prison
  • D.a military fortification
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