【题目】The lifeboat was sent out tothe sailors from the sinking ship.
A.shelter
B.rescue
C.escape
D.trap

【答案】B
【解析】A，shelter掩蔽，庇护；B，rescue营救；C，escape逃脱，逃跑；D，trap使陷入困境；句意：救生艇被派出去救援沉船的水手。根据句意，故选B。