媒体炉
参考答案：
是将多种媒体功能融合为一体的媒体设备，媒体炉可以控制并传送所有类型的数字化信息。
I just don't understand _____ that leads to so many teenagers becoming addicted to playing computer games. [ ]
A. why it does
B. what it is
C. what it does
D. why it is
国家税务局、地方税务局对同一纳税人的税务登记可以采用不同代码。
