A.單位平均每間房≤1只 B.單位平均每間房≤2只 C.單位平均每間房≤3只 D.單位平均每間房≤4只
A.90% B.85% C.80% D.75%
A.雌性成蟲(chóng) B.雄性成蟲(chóng) C.蟑螂若蟲(chóng) D.蟑螂卵