淋证的病因可归纳为（）
A.外感湿热
B.饮食不节
C.情志失调
D.禀赋不足
E.劳伤久病
参考答案：A, B, C, D, E
______ the police thought he was the most likely one, since they had no exact proof about it, they could not arrest him.
A．Although
B．As long as
C．If only
D．As soon as
脉冲波也可以用三个参数来表示，即脉冲幅值Vm，（）和重复周期T。
