前列腺增生病人最早出现的症状是
A．排尿困难
B．尿潴留
C．尿频
D．无痛性血尿
E．腹股沟疝
参考答案：C
"Is this _____ blouse?" "No, it isn't." [ ]
A. she
B. hers
C. her
D. she's
执业药师
