A.前方是視神經(jīng)管 B.兩側(cè)是海綿竇 C.后方為鞍結(jié)節(jié) D.頂為小腦幕 E.底與篩竇相鄰
A.對(duì)病人無(wú)益,且有輕度傷害 B.對(duì)病人有益,但構(gòu)成了強(qiáng)迫 C.對(duì)病人有利有害,但利小于害 D.對(duì)病人有利有害,但利大于害 E.對(duì)病人是禁忌的