下列文件中，属于新建商品房销售前销售文件的是( )。
A．置业计划
B．购楼须知
C．房地产认购协议书
D．宣传展板
参考答案：A
显示总胆管长轴切面的最佳体位与探头方位是（）。
A.左侧卧位，探头与肋弓交叉成70°―90°
B.左侧卧位，探头置于肋弓下斜向位
C.右侧卧位，探头置于上腹部横向位
D.平卧位，探头置于上腹部横向位
E.平卧位，探头置于肋下斜向位
What’s the speaker going to do with the letter
A．He would throw it away.
B．He would keep it.
C．He would post it.
D．He would stick a stamp on it.
