一道英语听力题听力部分：W:Jack has some of the qualities,but he's not ex

一道英语听力题
听力部分：W:Jack has some of the qualities,but he's not exactly What we need.
M:What do you mean?
W:For this project we need someone who is just as tough,but a lot more patient.
问题：What does the woman mean?
A.Jack knows the project well. B.Jack is not tough enough. C.Jack lacks patience.
我想说的是,因为but的意思很多 我不知道这里的but到底是什么意思 如果在以后的考试中也遇到辨析不了but含义的时候,该怎么办?