A.0.80% B.0.60% C.0.40% D.1.00%
A.0.10% B.0.30% C.0.50% D.0.70%
A.一個(gè)百分點(diǎn) B.二個(gè)百分點(diǎn) C.三個(gè)百分點(diǎn) D.四個(gè)百分點(diǎn)