A.政策風(fēng)險(xiǎn) B.信用風(fēng)險(xiǎn) C.經(jīng)濟(jì)風(fēng)險(xiǎn) D.市場(chǎng)風(fēng)險(xiǎn) E.開發(fā)風(fēng)險(xiǎn)