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航空情报执照考试

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用于作为真向或磁向的基准。()

  • A、It is used as a reference to either true nor magnetic direction.
  • B、It is used as a reference to either true or magnetic direction.
  • C、It is used as a reference to neither true or magnetic direction.
  • D、It is used as a reference to neither true nor magnetic direction.
正确答案:B
答案解析:
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