单选题 His arm was _____ from the shark’s mouth and reattached but the boy, who nearly died，remained in a dedicate condition.无

【正确答案】 B

【答案解析】句意：男孩的手臂从鲨鱼的嘴里找回并重新接上，但死里逃生的他仍旧非常虚弱。retrieve找回；取回。 repel击退；排斥。 retain保持。 restore恢复。