“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

党的省、自治区、直辖市、设区的市和自治州的委员会，每届任期五年。这些委员会的委员和候补委员必须有（）以上的党龄。

A、三年

B、五年

C、六年