2010年职称英语等级考试综合C级模拟试题(三)4[1]

damaged.
　　B)Citrus trees would be damaged if the temperature drops below minus 2~C for four hours.
　　C)The Carolinas，Tennessee and parts of Virginia were covered with snow.
　　D)Florida Citrus Mutual sprayed trees with sprinklers for citrus growers
　　标准答案： B,B,A,C,D