A.1°~10°B.2°~10°C.3°~10°D.4°~10°
A.大于2mLB.小于2mLC.小于5mLD.小于8mL
A.自鎖的互動(dòng)B.自鎖的差動(dòng)C.互鎖的差動(dòng)D.連鎖的互動(dòng)