【单选题】There ____________ ice and snow. [ ]
【单选题】There _______ ice and snow. [ ]
【简答题】A. ice B. show C. snow
【简答题】[A] snow [B] earth [C] room [D] ice
【单选题】In mountainous regions, much of the snow that falls is ________ into ice.
【简答题】铬的污染源有含铬矿石的加工、________、_____、_______等排放的废水
【简答题】In building the Ice Hotel, the moulds are removed after the snow is ______.