纸币呈正十字形，票面缺少四分之一的，按原面额的（）兑换。
A.全额
B.四分之三
C.一半
参考答案：C
The house rent is increasing sharply nowadays. I’ve got about half the space I had five years ago but I am paying _______ now.
A．as five times much
B．as much five times
C．much as five times
D．five times as much
铰链夹紧机构之所以较少采用在手动夹紧装置中，而广泛应用于机动夹紧装置中是因其（）。
A.增力比较小
B.并不能减轻劳动强度
C.自锁性能较差
D.自锁性能较好
