Upon receipt of the Application Form from the exhibitor, the official Contract in duplicate will be sent to the applicant for signature.

秘书处接到报名后向参展单位寄发正式合同一式两份，以待会签。

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FinCEN has confirmed that duplicate FBARs will be filed where employees have only signature authority over foreign financial accounts owned by employers.

FORBES: IRS Issues Final FBAR Regulations and Revised FBAR Form

There are practical things to consider, such as checking it is not a duplicate and will it be easy for the emergency services, a taxi firm, or the post office to find it?

BBC: What's in a street name?

During January, other national seed banks supported by the Consultative Group on International Agricultural Research (CGIAR) began packing and shipping duplicate collections that will be stored at Svalbard.

BBC: Seeds destined for the 'doomsday' vault (Image: IITA)