如何判断术前食管癌肿瘤浸润情况。
参考答案:
①病变的长度;②X线钡餐显示的病变早晚;③有一定的扩张度,表明肿瘤浸润深度不深或非全周性浸润;④食管腔内超声检查。
The news ________ your hometown. [ ]
A. is concerned about
B. is concerned in
C. concerns
D. concerns with
以消费主体的地域分:本地客户和().