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)
A.350kgB.250kgC.150kgD.100kg