对某二叉树进行前序遍历的结果为ABDEFC，中序遍历的结果为DBFEAC，则后序遍历

持票人善意取得伪造的票据,对被伪造人不能行使票据权利。()

The world will live happier lives if people have ____ better understanding of _____ idea of

harmonious globe.[ ]

A. the; an        

B. /; the              

C. a; the            

D. a; an

简单均匀控制系统中控制器的比例方法倍数（）

句型转换。

1.昨天的天气如何？

   ________ ________  the  weather ________ yesterday?

   ________ ________ the weather yesterday?

2. I knew something about it. (改为否定句)

    I ________ ________ ________about it.

3. I decided l would buy a new car. (改为同义句)

    I ________ ________  buy a new car.

4. She hopes she can go bike riding. (改为同义句)

    She________ ________go bike riding.

目前我国房地产经纪的全国性行业组织是()。

A.中国房地产业协会 

B.中国房地产经纪人协会 

C.中国房地产估价师与房地产经纪人学会 

D.中国房地产估价师学会