A.只存在經(jīng)營(yíng)風(fēng)險(xiǎn) B.經(jīng)營(yíng)風(fēng)險(xiǎn)大于財(cái)務(wù)風(fēng)險(xiǎn) C.經(jīng)營(yíng)風(fēng)險(xiǎn)小于財(cái)務(wù)風(fēng)險(xiǎn) D.同時(shí)存在經(jīng)營(yíng)風(fēng)險(xiǎn)和財(cái)務(wù)風(fēng)險(xiǎn)
A.20 B.-20 C.180 D.0
A.看漲期權(quán)的價(jià)值降低 B.看跌期權(quán)的價(jià)值降低 C.不能判斷 D.看漲期權(quán)與看跌期權(quán)的價(jià)值均升高