Student: I'm sorry I'm late. My bike was broken.Teacher: ______ . It's not the first time you have said this.
A:I don't buy your story.
B:Never mind?
C:I don't think you are right.
D:You don't say.
《华阳国志》卷三《蜀志》中有一段文字“灌溉三郡,开稻田,于是蜀沃野千里,号为陆海。”称颂的是( )
一个棱锥的三视图如右图所示,则它的体积为( )