Duty is an act or a course of action that people ______you to take by social customs, law or religion.

______ 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.

A little （）may cause great damage or loss.

He is a man of great experience, _____ much can be learned.

He is a man of great experience, ______ much can be learned.

Johnson is a man of great experience, ______ much can be learned.

（）is a term that covers a great variety of goods that must be loaded individually,and not in intermodal container nor in bulk as with oil or grain.

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（）.

Jitter is an unwanted variation of one or more characteristics of a periodic signal in electronics and telecommunications and（）refers to call issues that cause variations in timing or time of arrival.

（ ）estimating is a technique for estimating the duration or cost of an activity ou project using historical data from a similar activity or project.

●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.