火淫证候可见（）
A．舌质红或绛，脉数
B．气急疲乏
C．两者均有
D．两者均无
参考答案：A
_______ my sister three times today but her line was always busy.
A．I’d phoned
B．I’ve been phoning
C．I’ve phoned
D．I was phoning
简述HLA分子的分布。
