从体系结构来看，TCP/IP是OSI七层模型的简化，它分为四层：网络接口层、网际网层、传输层、（）。
参考答案：应用层
蒙古和印度分别属于
A．东亚和南亚地区
B．中亚和东南亚地区
C．西亚和东南亚地区
D．东亚和东南亚地区
The artist spent years on his monumental painting, which covered the whole roof of the church, the biggest in the country.
A．archaic
B．sentimental
C．outstanding
D．entire
