【单选题】设F是一个森林,B是由F变换得的二叉树。若F中有n个非终端结点,则B中右指针域为空的结点有( )个。
【单选题】设F是一个森林,B是由F变换得的二叉树。若F中有n个非终端结点,则B中右指针域为空的结点有( )个。【西安电子科技大学1998一、10(2分)】
【单选题】旋转式多冲压片机的特点包括
A.
该机填料方式合理,由上、下冲头相对加压,压力分布均匀
D.
机器内配有吸风箱,通过吸嘴可吸取机器运转时产生的粉尘
【单选题】Traditional technologies and materials have been replaced by advanced apparatus and substances of modern society.
【简答题】A.In 1636. B.In 1638. C.In 1836. D.In 1782.
【简答题】Although it was not named ________ 1782, this kind of metal was used as early as 5300B. C. [A]for [B]in [C] until [D] since
【单选题】When was the building built?
【单选题】设F是一个森林,B是由F变换得的二叉树。若F中有n个非终端结点,则B中右指针域为空的结点有几个: