题干
The man ____ the stranger when he ____ suddenly .
A：glared at, woke u
B：glared at, was waken u
C：stared at, woke
D：stared at , was waken u
答案(点此获取答案解析）
B
的球的内接四面体的所有棱长相等，则此四面体的体积为( )