The police say there is a $50,000 _______ for any information that helps them find the killer.

A．income

B．fee

C．bill

D．reward

患儿，7岁。患痄腮，双侧腮腺肿胀消退后出现一侧睾丸肿痛，伴少腹疼痛拒按，舌红苔黄，脉数。其治法除清肝泻火外，还应（）

A.活血止痛

B.活血化瘀

C.软坚散结

D.清热凉血

E.消肿止痛