單項選擇題
A.1.3-2.0 B.1.3-2.5 C.1.3-3.0 D.1.3-3.5
A.3.5-6.0 B.3.5-7.0 C.3.5-8.0 D.3.5-9.0
A.7 B.8 C.9 D.10
A.3° B.4° C.5° D.6°
A.5°-30° B.5°-25° C.5°-20° D.5°-15°
A.25°-30° B.25°-35° C.25°-40° D.25°-45°
A.45° B.50° C.55° D.60°
A.2 B.4 C.6 D.8
A.±1 B.±2 C.±3 D.±4
A.0.37A B.0.43A C.0.66A D.0.87A
A.二分器 B.縮分機 C.破碎縮分聯合機 D.堆錐四分法