Having finished the work, _____.

A．it was almost six o'clock

B．a postman came and delivered the evening paper and some letters

C．supper had already been prepared

D．we had a rest and then had supper

最早出现的智力量表是( )。

A．比奈智力测验

B．斯坦福—比纳量表

C．韦克斯勒智力量表

D．瑞文标准推理测验