汉译英：“出口许可证；进口许可证；信用证”，正确的翻译为：( )

A．import licence; export licence; letter of guarantee

B．export licenee; import licence; letter of guarantee

C．import licence; export licence; letter of credit

D．export licence; import licence; letter of credit

治疗噤口痢，虚实皆可选用的药物是（）

A.白头翁

B.黄连

C.黄柏

D.石菖蒲

E.五味子