單項(xiàng)選擇題
A.17% B.11% C.6% D.0
A.300~500 B.1500~3000 C.2000~5000 D.5000~20000
A.30 B.60 C.90 D.180
A.原油 B.牛黃 C.新聞紙 D.服裝
A.159400 B.190400 C.199000 D.202880