国内合同的监督是由()进行的,国外合同的监督,双方均有()
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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
Class MyDictionary Implements IDictionary
D. Class MyDictionary End Class Dim t as New Dictionary (Of String, String) Dim dict As MyDIctionary= CType (t,MyDictionary)
电磁门属于()。
A. 电动门;
B. 手动门;
C. 快速动作阀。