150.將漂浮物朝水流下游拋向溺者,使溺者抓住後浮在水面達到自救。移至開放水域
(A)O
(B)X
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統計: A(0), B(1), C(0), D(0), E(0) #2718311
統計: A(0), B(1), C(0), D(0), E(0) #2718311