A ship crane which has been idle for a period of over six mo

We can obviously notice that over a period of no practice what has been learned tends to be forgotten from______.

The certificate of pratique certifies that ______.

A.the ship has no rats or mice on board

B.no quarantinable disease has been found on the vessel

C.no person has died during the voyage the ship has just completed

D.all the crew members have no health problem

(A)when

(B) once

(C) which

(D) since

Do not______the watch to the relieving officer until he has verbally expressed his acknowledgment of the information which has been passed by the officer handing over．

A.turn over

B.hand over

C.hands off

D.take over

A ship crane which has been idle for a period of over six months shall be inspected to the same standards as a ______.

A.yearly inspection

B.quarterly inspection

C.monthly inspection

D.weekly inspection

Which information is not given in the text?

A.Ship recycling contributes to sustainable development

B.The IMO believes that making an international instrument to regulate the ship recycling process is urgently in need

C.An international convention on ship recycling has been adopted

D.The IMO has taken action to develop an effective solution to the problem of ship recycling

My vessel is healthy and I request free pratique．What does the sentence My vessel is healthy mean？It means： ______.

A.My ship has been maintained

B.My ship has been painted

C.All my crew members have been vaccinated

D.All my crew members have no quarantinable diseases

此题为判断题(对，错)。

Which of the following statements is FALSE concerning cranes being installed on the centerline of vessels ________．

A.A centerline crane can never be operated in tandem

B.One crane is able to work one end of two adjacent hatches

C.These cranes are more economical and weigh less than outboard-mounted cranes

D.One crane is able to work both sides of the ship