选出下列句中“乎”字用法不同类的一项[ ]
A．浩浩乎如冯虚御风
B．飘飘乎如遗世独立
C．知不可乎骤得
D．郁乎苍苍
答案：C
计算：a2b2+（______）+4=（2-ab）2．
The position, however, ____ you are applying , is not quite a well –paid one .
A that B which C for which D to which
