A.風(fēng)險預(yù)防 B.風(fēng)險規(guī)避 C.風(fēng)險分散 D.風(fēng)險轉(zhuǎn)嫁
A.30% B.40% C.50% D.60%
A.4% B.%8 C.50% D.100%