请根据下面情形就电台主持人和电视主持人工作的相同之处和不同之处作简单说明。词数：100左右。
不同点: 电台主持人不需要特别注重外表；不能借助图片等传递信息 电视主持人注重外表；可以借助图片等传递信息
相同点：语言流利；知识面广；需提供准确的信息
参考词汇:
电台主持人 radio host;
电视主持人 tv host
the work of radio hosts and tv hosts is similar to each other in many ways. first, both radio hosts and tv hosts must be fluent in languages. second, they are all supposed to have a wide knowledge of culture, history, geography and so on. in addition, they must give completely correct information.
however, there are also some differences between them. for the tv hosts, they must pay much attention to their appearances while the radio hosts needn’t. besides, tv hosts can make use of pictures to express themselves more clearly but the radio hosts can not.
in my vie