单选题执行语句 Dim X, Y as Integer 后，（）AX和Y均被定义为整型变量BX和Y被定义为变体类型变量CX被定义为整型变量，Y被定义为变体类型变量DX被定义为变体类型变量，Y被定义为整型变量
单选题
执行语句 Dim X, Y as Integer 后，（）
A
X和Y均被定义为整型变量
B
X和Y被定义为变体类型变量
C
X被定义为整型变量，Y被定义为变体类型变量
D
X被定义为变体类型变量，Y被定义为整型变量
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