下列哪一三角属颈后三角区（）
A.颌下三角
B.颈动脉三角
C.肌三角
D.锁骨上三角
E.颏下三角
参考答案：C
My parents ________ in Hong Kong.They were born there and have never lived anywhere else.
A．live
B．lived
C．were living
D．will live
外为木栓层，皮层、中柱鞘有石细胞，髓部无石细胞的药材是( )
A．太子参B．附子C．味连D．云连E．雅连
