单选题 All the members of a record must be ().
A. the same type
B. related types
C. integer type
D. character type
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单选题 ()is an ordered collection of data in which each element contains the location of the next element.
An array
B. A record
C. A linked list
D. A node
单选题 In a linked list, each element contains ().
A. data
B. a link
C. a record
D. a and b
单选题 The () is a pointer that identifies the next element in the linked list.
A. link
B. node
C. array
D. a or b
单选题 An empty linked list consists of ().
A. a variable
B. two nodes
C. data and a link
D. a null head pointer