【单选题】The special session of the National Snow and Ice Data Center was organized to ______ .
A.
attract more contributions to the cryospheric regions
B.
make more people realize the threats of climate change
C.
stimulate further research into the changes in ice thickness
D.
celebrate its 25th anniversary and discuss changes in the cryosphere
【单选题】There ____________ ice and snow. [ ]
【简答题】A.That a snow cover can cause ice to melt. B.How heat can pr ice from melting. C.How water flows into the ocean. D.Why volcanoes have a slippery suce.
【单选题】There _______ ice and snow. [ ]
【简答题】A. ice B. show C. snow
【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 ______.