單項(xiàng)選擇題
A.1.6B.1.0C.0.8D.3.2
A.25B.22C.23D.24
A.180B.120C.150D.200
A.600B.608C.620D.650
A.210B.200C.230D.150
A.50B.70C.80D.100
A.70B.80C.90D.100
A.4B.2C.3D.6
A.35B.25C.30D.40
A.250B.150C.300D.200
A.3920B.3000C.2500D.3500