患者男性，55岁，1个月前搬花盆时突感腰痛，当时仍能活动，未就诊。3天前受凉后感腰痛明显伴右下肢放射痛，咳嗽、喷嚏时症状加重，不能下床活动，以前无类似发作史。查体：腰椎生理曲度消失，活动明显受限，右侧直腿抬高达40°，加强试验阳性，右足外侧外踝部皮肤感觉过敏，右跟腱反射减弱，X线平片除腰椎生理曲度消失外，余未见异常

经治疗症状缓解后，首选康复预防措施是（）

A.减轻体重

B.禁止弯腰活动

C.下肢肌力锻炼

D.腰背肌肉力量锻炼

E.增加营养，增强抵抗力

In the Northern Hemisphere，if your vessel is in a hurricane’s navigable semicircle it should be positioned with the wind on the（）.

A.Starboard quarter，hold course and make as much speed as possible

B.Port bow，hold course and make as much speed as possible until the hurricane has passed

C.Port quarter，maintain course and make as much speed as possible

D.Starboard bow and heave to until the hurricane has passed