A.0.18B.0.19C.0.16D.0.15
A.施力B.壓力C.拉力D.扭力
A.刮研點(diǎn)數(shù)B.刮研次數(shù)C.刮研項(xiàng)數(shù)D.刮研時(shí)數(shù)