______ is a sequence of letters and digits, the first character must be a letter. -题库考试答案搜索网

______ is a sequence of letters and digits, the first character must be a letter.

单选题

2021-12-31 18:34

A、An identifier
B、A string
C、An array
D、program

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正确答案

A

试题解析

解析：译文的含义是：()是字母和数字的组合，首字符必须是字母。选项A、B、C、D的含义分别是标识符、字符串、数组、程序。

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