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如图,一个空间几何体的正视图、侧视图、俯视图为全等的等腰直角三角形,如果直角三角...

如图,一个空间几何体的正视图、侧视图、俯视图为全等的等腰直角三角形,如果直角三角形的直角边长为1,那么这个几何体的体积为                                                 (    )

说明: 6ec8aac122bd4f6e

       A.1                                                       B.6ec8aac122bd4f6e

       C.6ec8aac122bd4f6e                                                      D.6ec8aac122bd4f6e

 

D 【解析】
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