假设参加计算机等级考试的学生关系R，参加英语等级考试的学生关系S。求既参加了计算机考试又参加了英语考试的学生，应当进行下列（）。

The cubic inch(or liter) displacement of a cylinder is determined by the diameter of the piston and the （）

Off hire is when a vessel breaks down，strands，or has any damage that prevents the working of cargo or delays the sailing of the vessel．Under which of the following charter parties is off hire most likely to be mentioned?（）.

Off hire is when a vessel breaks down，strands，or has any damage that prevents the working of cargo or delays the sailing of the vessel.Under which of the following charter parties is off hire mostlikely to be mentioned?（）.

The business of doctors is to prevent and______disease.

______ is the address of a variable or a variable in which the address of another variable is stored.

______is the address of.a variable or a variable in which the address of another variable is stored.

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

●A (68) is a feature of the system or adescription of something the system is capable of doing in order to fulfill the system's purpose.