单选题The release of the attached ship can（）only by provision of bail，usually a very large sum.A be securedB be sincereC be simulatedD be signature

A. A DBA can check specific tables with the DMU

B. The database to be migrated must be opened read-only.

C. The release of the database to be converted can be any release since 9.2.0.8.

D. The DMU can report columns that are too long in the converted characterset.

E. The DMU can report columns that are not represented in the converted characterset.

______ is issued under the provision of International Convention for the Prevention of Pollution from Ships，1973，as modified by the Protocol of 1978 relating thereto.

A.INTERNATIONAL OIL POLLUTION PREVENTION CERTIFICATE

B.CARGO SHIP SAFETY CONSTRUCTION CERTIFICATE

C.CARGO SHIP SAFETY EQUIPMENT CERTIFICATE

D.CARGO SHIP SAFETY RADIOTELEPHONY CERTIFICATE

Painting on _________is prohibited because it will weaken its sensibility.

A.ship shell

B.exterior of winches

C.hydrostatic release unit

D.hold ladders

The release of the attached ship can ______ only by provision of bail，usually a very large sum．

A.Be secured

B.Be sincere

C.Be simulated

D.Be signature

A. Level 1 only routers see routes contained in their area.

B. Level 1 routers route towards Level 2 routers due to the attached bit.

C. Level 2 routers route towards Level 1 routers due to the attached bit.

D. Level 2 routers can see routes in other Level 2 areas and routes originated in Level 1 areas.

In order to withstand fluid head pressure on a ship，stiffeners are often attached to the bulkhead ______.

A.penetrations

B.plating

C.framing

D.brackets

The captain of a ship can be also called

A.master

B.agent

C.ship owner

D.pilot

An on-load release system on a survival craft means the cable can be released ______.

A.only when the load is taken off the cable

B.only when there is a load on the cable

C.only when activated by the controls at the lowering station

D.at any time