A.勻速 B.加速 C.減速 D.忽快忽慢
A.±50mm B.±30mm C.±20mm D.±10mm
A.1500 B.1600 C.1800 D.2000
A.0.5 B.1 C.2 D.3
(A)375mm (B)600mm (C)690mm (D)745mm
A.10 B.23 C.20 D.30
(A)5% (B)10% (C)15% (D)20%