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Civilian: What should I do if I were in a ＿＿（47）＿＿ ?
Fireman: You had better cover your mouth and nose with a ＿＿（48）＿＿ . Take the nearest ＿＿（49）＿＿ right away. ＿＿（50）＿＿
immediately.
Fireman: You had better cover your mouth and nose with a .
Aplastic bottle
Bbattery
Cwet towel正確答案
Dtooth brush
答案與詳解
