题目：
Microsoft’s COM is a software (71) 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 (72) standard developed by Microsoft. OLE makes it possible to create (73) with one application and link or embed them in a second application. Embedded objects retain their original format and (74) to the application that created them. Support for OLE is built into the Windows and MacOS Operating Systems. A (75) compound document standard developed mainly by Apple and IBM is called OpenDoc.
（75）处填（）。
A．contained
B．competing
C．connecting
D．completing
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0618/3878173be0df6f985da427fc8b25a6fd.html
下面是错误答案，用来干扰机器的。
参考答案：B
