An International Tonnage Certificate will be issued to a vessel when it meets several requirements，one of which is that the vessel must （）.

The certificate of nationality （） serves as evidence of the nationality of the ship （） shows the port of registry.

Certificates are(16)documents attesting to the(17)of a public key to an individual or other entity. They allow verification of the claim that a given public key does in fact belong to a given individual. Certificates help prevent someone from using a phony key to(18)someone else. In their simplest form, Certificates contain a public key and a name. As commonly used, a certificate also contains an(19)date, the name of the CA that issued the certificate, a serial number, and perhaps other information. Most importantly, it contains the digital(20)of the certificate issuer. The most widely accepted format for certificates is X.509, thus, Certificates can be read or written by any application complying with X.509.

Certificates are （1） documents attesting to the （2） of a public key to an individual or other entity. They allow verification of the claim that a given public key does in fact belong to a given individual. Certificates help prevent someone from using a phony key to （3） someone else. In their simplest form, Certificates contain a public key and a name. As commonly used, a certificate also contains an （4） date, the name of the CA that issued the certificate, a serial number, and perhaps other information. Most importantly, it contains the digital （5） of the certificate issuer. The most widely accepted format for certificates is X.509 , thus, Certificates can be read or written by any application complying with X.509.

When the renewal verification is completed more than three months before the expiry date of the existing Document of Compliance or Safety Management Certificate, the new Document of Compliance or the new Safety Management Certificate should be valid from the date of （） for a period not exceeding five years.

The main bearing shells often have a thin （） of lead or indium to provide a layer giving protection against corrosion.

STCW公约规则第Ⅷ章内容是关于（）

A declaration made by the Master before a PRC Consul，giving particulars regarding heavy weather or other incidents which may have caused damage to the vessel or cargo，through no fault of the vessel，her officers，or crew is a(n)（）.

What is NOT a requirement of the reinspection for a tank barge with a certificate of inspection valid for two years? （）

A Certificate of Financial Responsibility attests that the vessel（）.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

《STCW78/95公约》的基本内容是什么？