單項選擇題
A.±0.1 B.±0.2 C.±0.3 D.±0.5
A.±1.0 B.±1.5 C.±2.0 D.±2.5
A.10 B.50 C.100 D.200
A.1 B.2 C.3 D.半
A.1 B.1.5 C.2 D.2.5
A.5 B.6 C.7 D.8
A.0.1B.0.2C.0.3D.0.4
A.1 B.1.5 C.0.5 D.2