单项选择题

案例分析题

UML-based tools are often used for J2EE/.NET application analysis and design，both because UML’s object orientation is ideal for the J2EE/.NET implementation  （）  and because of the expanding scope and complexity of today’s enterprise endeavors． （）  the approaches diverge at the coding/implementation phase，a common Set of analysis and design techniques applies to both J2EEand.NET．
The use of a virtual machine (VM) architecture is also common to J2EE and .NET. Application development tools  （）  intermediate-level code instead of platform-specific binary code, which means the VM interprets that code in real time or performs Just-In-Time (JIT) compilation; the Microsoft VM always runs JIT-compiled code. This VM-based model results in  （）  -independent applications and is conducive to the late-binding technique that’s  （）  to the OO approach.

and is conducive to the late-binding technique that’s（）to the OO approach.

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