Structural stress levels in a ship are the sum of loading stresses and stresses due to（）.

[单选题]Structural stress on a ship can be reduced by（）.A . lessening the effect of environmental forcesB . even and symmetrical variable loadingC . local concentration of heavy consumablesD . increasing the metacentric height

[单选题]The ship is to leave at eight o’clock. The captain should order at seven “________”.A．Make fastB．Single upC．Stand byD．All clear

[名词解释] 结构基因（structural gene）

[单选题]Compared to internal structural plating，the exterior hull plating on a vessel is usually（）.A . strongerB . thinnerC . more corrosion resistantD . a lower grade steel

[单选题]Vertical structural members attached to the floors that add strength to the floors are called（）.A . boss platesB . buckler platesC . stiffenersD . breast hook

[单选题]E．ach ship shall carry on board a ship security plan approved byA．the chief engineer officerB．the master of the shipC．the manager of the companyD．the Administration

[单选题]E．ach ship shall carry on board a ship security plan approved by______.A．the chief engineer officerB．the master of the shipC．the manager of the companyD．the Administration

[主观题]Structural unemployment 结构性失业

[名词解释] Structural unemployment 结构性失业

[试题](b) Explain Kohlberg’s three levels of moral development and identify the levels of moral developmentdemonstrated by the contributions of Gary Howells, Vanda Monroe and Martin Chan. (12 marks)