A.自然風(fēng)險(xiǎn) B.社會(huì)風(fēng)險(xiǎn) C.政治風(fēng)險(xiǎn) D.經(jīng)濟(jì)風(fēng)險(xiǎn) E.技術(shù)風(fēng)險(xiǎn)
A.10% B.15% C.20% D.25%