A：-∞,e-1
B：e-1,+∞
C：e,+∞
D：0,e-1
驰名中外的扎龙自然保护区是丹顶鹤的家园，保护区内有大面积的湿地和水域，炎热的夏天，保护区的温度比市区内温度低一些，主要原因是水____ 的缘故，还有水____ 的缘故．
It was in his ____ （forty）that Liu Cixin completed his famous novel Three bodies.
