在Excel中通过分类汇总可以计算某一列每组的平均数、行数、合计数。()
参考答案:错
有一位建筑师,想要建造一座四面窗户都朝向北方的房子,你认为应该建在( )
A.北极点
B.南极点
C.赤道
D.北回归线
--- Is there a primary school in your village now? --- No but there_________.
A.used
B.did
C.used to
D.used to be