题目

Beijing Zoo was named the “Ten-thousand Animal Garden” when it first opened to the public in 1906 . That is , it may have had ten-thousand animals one hundred years ago . But now it has about 7000 wild animals , and these cover 600 types of animals . In the Zoo there are pandas and other rare(珍稀的) animals , such as Sichuan Golden Mondays , Tibetan Yaks , and Northeast Tigers and so on . Also , There are some famous animals from other countries in the world . As it is quite common nowadays , There is a lovely aquarium “Beijing Ocean Hall” with all kinds of colorful fishes .下列事件发生的概率为0的是（    ） A、随意掷一枚均匀的硬币两次，至少有一次反面朝上； B、今年冬天黑龙江会下雪；    C、随意掷两个均匀的骰子，朝上面的点数之和为1； D、一个转盘被分成红、白、白、红、红、白的6个扇形，转动转盘，指针停在红色区域。