Communication protocols are (66) connection-oriented or connectionless, (67) whether the sender of a message needs to contact and maintain a dialog with the recipient or (68) send a message without any, prior connect and with the hope that the recipient receives everything. (69) .These methods (70) the two ways that communication is implemented on networks.

A．in order

B．in array

C．in series

D．in queueing

非法拘禁行为发生在（）过程中，造成侵权的行政机关承担赔偿责任。

A、非工作

B、行使行政职权

C、未行使职权

D、休假