gear
nonpositive displacement
positive displacement
rotary
第1题：
●Generally software can be divided into two types: (73) software and application software.
(73)
A. database
B. system
C. operating
D. text
第2题：
According to ILO Convention，hours of rest may be divided into no more than ______ periods on board the ship．
A.two
B.three
C.four
D.five
第3题：
Preparations for loading cargo on board ship.
第4题：
水手应该知道船上吊杆的安全工作负荷。（）
第5题：
第6题：
A ship required to carry an Oil Record Book must maintain the book on board for ______.
A.one year
B.two years
C.three years
D.four years
第7题：
The number and position of hydrants arranged on board shall be such that _______，one of which shall be from a single length of hose，may reach any part of the ship normally accessible to the passengers or crew while the ship is being navigated．
A.at least two jets of water which shall be from the same length of hose
B.at least two jets of water emanating from the same hydrant
C.at least two jets of water not emanating from the same hydrant
D.at least two jets of water not emanating from the same hydrant，one of which shall be from a single length of hose
第8题：
Generally software can be divided into two types:（ ）software and application software.
A.system B.I/O C.control D.database
第9题：
The （）is pumped onto the ship at the loading port by shore pumps.
第10题：
For painting, the surface of a ship’s hull is divided into （）areas.