A.拍賣市場(chǎng) B.連續(xù)性市場(chǎng) C.二級(jí)市場(chǎng) D.a和b E.ab和c
A.5% B.25% C.50% D.75% E.90%
A.20% B.34% C.50% D.63% E.75%