问题
单项选择题
宽带ISDN协议分为3面和3层。其中3个面为用户面、控制面和
A．物理面
B．ATM面
C．ATM适配面
D．管理面
答案
参考答案：D
解析： 宽带ISDN的协议分为3面和3层，3个面分别称为用户面、控制面和管理面。每个面又分3层：物理层、ATM层和ATM适配层。
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宽带ISDN协议分为3面和3层。其中3个面为用户面、控制面和
A．物理面
B．ATM面
C．ATM适配面
D．管理面
参考答案：D
解析： 宽带ISDN的协议分为3面和3层，3个面分别称为用户面、控制面和管理面。每个面又分3层：物理层、ATM层和ATM适配层。
| "Culture shock" occurs as a result of total immersion in new culture. It (51) to "people who have been suddenly transplanted abroad. " Newcomers may be anxious (52) they do not speak the language, know the (53) , or understand people’s behavior in daily life. The visitor finds that "yes" may not always mean "yes", that friendliness does not (54) mean friendship or that statements that appear to be serious are really intended (55) jokes. The foreigner may be unsure as to when to shake hands or embrace, when to (56) conversations, or how to approach a stranger. The (57) of "culture shock" helps explain feelings of bewilderment and disorientation. Language problems do not account for all the frustrations that people feel. When one is (58) of everything that was once familiar, such as understanding a transportation system, knowing how to register for university classes, (59) knowing how to make friends, difficulties in coping with the new society may (60) . |
A．denied
B．refused
C．lost
D．deprived