Which of the following companies is not an American broadcaster?

In front Sports is______. A: a soccer team B: a marketing company C: a football association D: a television broadcaster

The weather (AB) on Channel 4 is always extremely smartly dressed. A: man B: broadcaster C: girl D: interpreter E: commentator

The<br/>weather () on Channel 4 is always extremely smartly dressed. A: man B: broadcaster C: girl D: interpreter E: commentator

关于TF的说法正确的有： A: tf是一种树形的数据结构 B: tf系统中所有的frame都需要是联通的 C: tf中的frame之间的变换关系需要有broadcaster来发布 D: 一棵正确的tf tree只能有一个根节点 E: 两个frame之间的transform包括了xyz轴的平移和旋转