49 The end of winter is the most dangerous time for the animals in Yellowstone P

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问题 49 The end of winter is the most dangerous time for the animals in Yellowstone Park as food becomes even ______.

选项 A、coarser
B、scarcer
C、rarer
D、harder

答案 B

解析 scarce难以获得而不足，通常指日用品因匮乏而难得到；coarse粗糙的，例如：coarse salt(粗盐)；rare现象很少见到或很少发生。句意：对于黄石公园的动物们，冬季结束的时候是最难熬的，因为食物更加稀少。

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