George could not speak Italian so he       an Italian girl to work as an interpreter.

A．hired

B．accompanied

C．instructed

D．directed

外用药物剂型选择的原则是()

A．急性皮炎仅有红斑、丘疹而无渗液时可选用粉剂或洗剂

B．炎症较重，糜烂、渗出较多时宜用软膏或霜剂

C．亚急性皮炎渗出不多者宜用溶液

D．慢性皮炎可选用乳剂、软膏、硬膏等