纵隔是指左、右两肺之间的一些重要器官和组织结构而言。()
参考答案:错
15.At the meeting, a proposal that he should take charge of the project _____.
A.put forward
B.came up
C.came up with
D.Showed
什么是模糊推理?有哪几种模糊推理方法?