“探(tan)放水(shui)(shui)中的‘三線(xian)(xian)(xian)(xian)’是什么?A、積水(shui)(shui)線(xian)(xian)(xian)(xian) B、停采線(xian)(xian)(xian)(xian) C、警(jing)(jing)戒線(xian)(xian)(xian)(xian) D、探(tan)水(shui)(shui)線(xian)(xian)(xian)(xian)”“積水(shui)(shui)線(xian)(xian)(xian)(xian)、警(jing)(jing)戒線(xian)(xian)(xian)(xian)、探(tan)水(shui)(shui)線(xian)(xian)(xian)(xian)”。“回答正確,請領(ling)取(qu)獎品”這是車村煤礦一(yi)號(hao)井(jing)在(zai)井(jing)口舉(ju)行有獎問(wen)答活動現場的一(yi)幕。