影响土地价格的因素中，( )因素是决定同一均质地域内地块差异性的重要因素。
A．一般 B．个别C．区域 D．面积
参考答案：A
My parents _____ in Hong Kong. They were born there and have lived nowhere else. [ ]
A. live
B. lived
C. were living
D. had lived
我国最新研制的高温超导材料氮化硼，经测定该化合物中两种元素的化合价之比为1：1，其化学式为（ ）
A．BN
B．N2B
C．B3N2
D．B2N3
