Microsoft’s COM is a software (146) that allows applications to be built from binary software components. COM is the underlying architecture that forms the foundation for higher-level software services, like those provided by OLE. COM defines a binary standard for function calling between components, a way for components to dynamically discover the interfaces implemented by other components, and a mechanism to identify components and their interfaces uniquely.
OLE is a compound (147) standard developed by Microsoft. OLE makes it possible to create (148) with one application and link or embed them in a second application. Embedded objects retain their original format and (149) to the application that created them. Support for OLE is built into the Windows and MacOS Operating Systems. A (150) compound document standard developed mainly by Apple and IBM is called OpenDoc.
A．completing
B．competing
C．connecting
D．contained
参考答案：B
解析：
[分析]： 微软提出的COM是一种软件体系结构，它可以根据二进制软件构件构成应用软件。就像OLE提供的服务一样，COM是组成高层次软件服务的一种基本的体系结构。COM定义了构件之间进行功能调用的二进制标准，这是使得一个构件能够动态地发现其他构件实现的接口的一种方法，也是标识构件及其接口的特殊机制。
OLE是由微软开发的复合文档标准。OLE可以生成与一种应用有关的对象，并且把它链接或嵌入到另外一个应用中。被嵌入的对象保持了原来的格式，而且可以与生成它们的应用链接起来。Windows 和MacOS操作系统已经内置了对OLE的支持。主要由Apple 和IBM 开发的竞争性复合文档标准叫做 OpenDoc。