The professor and ______ scientist we are talking about is ___able man.
问题描述：
The professor and ______ scientist we are talking about is ___able man.
A./;an
B.the;the
C./;the
D.the;an
答
A./;an前and连接两个名词,指的是兼有两种身份的一个人,加the就表明是两个人,后用an,这样就符合句意了.