16.我国电视产业中最早出现的经营项目是

A.电视购物(直销)                                            B.广告经营

C.收费信息节目                                               D.电视节目经营

17.我国创办报刊实行的制度是

A.特许制                                                         B.登记制

C.备案制                                                         D.审批制

18.就目前而言，拥有受众规模最大的媒体是

A.报纸                                                             B.广播

C.电视                                                             D.杂志

19.一般而言，报刊的读者主要集中于

A.老年                                                             B.中青年

C.儿童                                                             D.少年

20.根据试验显示，信源可信度越高，说服效果

A.越大                                                             B.越小

C.越不稳定                                                      D.越难控制