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听力原文:If a letter of credit is issued irrevocably, it can't be canceled nor amended without permission.

(4)

  • A.An irrevocable L/C can not be committed to amendment.
  • B.An irrevocable L/C can not be cancelled without permission.
  • C.An irrevocable L/C can not be cancelled or amended.
  • D.Neither cancellation nor amendment without permission can be made to the irrevocable L/C.
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