Each entity type in the E-R diagram becomes a relation. The identifier of the entity type becomes the ________ of the relation, and other attributes of the entity type become non-primary key attributes of the relation
A) Foreign key
B) Index
C) Unique key
D) Primary key
D
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Ekman and Freisen identified 43 muscular movements that we are capable of making with our face, and they identified more than how many facial expressions that have meaning?
A. 4,000 B. 3,000 C. 6,000 D. 5,000
Which of the following is used in the sales journal to indicate that summary totals have been posted to the general ledger?
a. a check mark; b. an account number; c. SJ; d. X; e. GJ.
Our ______ pitch is the level at which we speak most often.
a. habitual b. normal c. optimal d. ideal
In the stepping stone method, when the value is obtained by summing up the unit costs in the cells with a plus sign, and then from the resulting total, subtracting the sum obtained by adding the unit costs in cells containing a minus sign, it is called ______.
a. improvement index b. performance index c. evaluation index d. selection index