理工A题库

单选题 1.00分

The drinking water has become contaminated with lead.

  • A.polluted
  • B.treated
  • C.tested
  • D.corrupted
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The rules are too rigid to allow for human error.
  • A.inflexible
  • B.general
  • C.complex
  • D.direct
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This species has nearly died out because its habitat is being destroyed.
  • A.turned dead
  • B.passed by
  • C.carried away
  • D.become extinct
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The methods of communication used during the war were primitive.
  • A.simple
  • B.reliable
  • C.effective
  • D.alternative
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