用收益还原法评估不动产价格时，应选用( )对房地产纯收益进行还原而求取。
A．综合还原率 B．建筑物还原率C．土地还原率 D．基准收益率
参考答案：A
_____ they won the game was ______ we had expected. [ ]
A. That; which
B. Whether; that
C. What; that
D. That; what
用式量为57的烷基取代甲苯苯环上的一个氢原子，所得芳香烃产物的数目为（ ）
A．3种
B．4种
C．5种
D．6种
