In the Entity-Relationship data model, all instances of an entity of a given type are grouped into:
A) entity objects.
B) class objects.
C) entity classes.
D) identifiers.
E) entity attributes.
C
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Under the successful efforts method, the costs of both successful and unsuccessful exploration for oil and gas are recorded as assets
Indicate whether the statement is true or false
Which statement BEST describes the report introduction?
a. It may be a copy of the report proposal. b. It may be omitted if the report preliminaries include the problem and purpose. c. It provides information needed to understand the rest of the report. d. It should not describe the research methods.
Hugh recently purchased a motorcycle for $3,000 but has had extensive problems starting the motor. In disgust at not being able to start the motor, Hugh shouts to his friends, "Any of you want to buy this thing for $20?" A contract will be formed if a friend gives Hugh a twenty-dollar bill
a. True b. False Indicate whether the statement is true or false
Tender of delivery requires:
a. only that the seller put and hold goods that conform to the contract at the buyer's disposition. b. that the goods be made available to the buyer for at least one week if they are not perishable. c. that the seller give the buyer reasonable notice of the tender. d. that tender occur during the buyer's normal business hours.