下列固定修复体龈边缘形态中密合度最差的是（）
A.刃状
B.90°肩台
C.90°肩台加斜面
D.凹面
E.135°肩台加斜面
参考答案：B
—Did you receive my letter?
—I received one just as I .
A．set out
B．had set out
C．was setting out
D．would set out
停止享受工伤保险待遇的有哪几种？
