题目内容：
A （ ） is a named memory block. By using its name, we can refer to the data stored in the memory block.
A.word
B.record
C.program
D.variable
参考答案：
答案解析：
选择题：A （ ） is a named memory block. By using its name, we can refer to the data stor
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- 题目类型：选择题
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