I'm going to buy a watch as _____ gift to my daughter, _____ one looking nice but not expensive. [ ]

A. a, the

B. a, /

C. the, the

D. /, a

血源性肺脓肿好发部位最多见于（）

A.左下叶背段

B.右上叶后段

C.右下叶背段

D.下叶基底段

E.两肺外周部