The torsion link prevents rotation between the shock strut inner and outer cylinders without effecting the reciprocating action during normal operation of the strut. The above sentence means"主起落架扭转连杆的功能是，在减震支柱正常工作期间防止减震支柱内、外筒之间出现旋转现象，并影响其反向运动．"
A.1
正确答案是B