["【День за днем, Задание №63】22рр3.4.2 2818 года",,"Эта ветка последний раз была отредруга绿莲花于ne2 3.5.4. 1881年年3月4日空气预热器清扫时，风机必须开启。判断题（）请在两日内作答。",,"При空气预热器清扫时，风机必须开启。判断题（错）",,"При空气预热器清扫时，风机必须开启。(X)"]

2018-03-04View Original

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本帖最后由绿莲花于 2018-3-5 10:40 编辑【每日一题第063题】2018年3月4日空气预热器吹扫时，风机必须开启。判断题（）请在两日内作答。

Reply #22018-03-04

空气预热器吹扫时，风机必须开启。判断题（错）

Reply #32018-03-05

空气预热器吹扫时，风机必须开启。(X)

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