“Facial transplants are no longer science fiction imagination ,”a surgeon has said,____that they are ___possible but  technically complex..

A．adding ,theoretically

B．considering ,desperately

C．noted ,ethically

D．stressed , completely

携带式用电设备应用电缆中的（）接地，此线芯严禁同时用来通过工作电流，严禁利用设备的零线接地。