青茶加工工艺为：萎凋——（）——杀青——揉捻——干燥。
参考答案：做青
阴虚内热型月经先期首选（）
A.解毒四物汤
B.保阴煎
C.二至丸
D.两地汤
E.清经散
After the accident a policeman was appointed to ______ the cause of the big fire. [ ]
A. look for
B. look after
C. look into
D. look upon
