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You work as the application developer at Hi-Tech.com. You create a new custom dictionary named MyDictionary. Choose the code segment which will ensure that MyDictionary is type safe?()

  • A、 Class MyDictionary Implements Dictionary (Of String,String)
  • B、 Class MyDictionary Inherits HashTable
  • C、 Class MyDictionary Implements IDictionary
  • D、 Class MyDictionary     End Class     Dim t as New Dictionary (Of String, String)     Dim dict As MyDIctionary= CType (t,MyDictionary)
正确答案:A
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