【判断题】纯净的水 pH=7,则可以说 pH 值为 7 的溶液就是纯净的水
【单选题】The story is a little too long, but it's worth______. [ ]
【单选题】The story is a little bit too long, but it's worth ______ .
【单选题】The story is a little bit too long, but it's worth ______.
【单选题】在搅拌缸中,为防止漩涡流产生和液体打旋,可以在罐体周围的内壁上安装 [ ]
【判断题】纯净水的PH=7,则可以说PH为7的溶液就是纯净的水。( )