题目内容

一棵二叉树中序序列为FEABDC，后序序列为FBADCE，则层序序列为( )。【华南理工大学2006一、11(2分)】

A. dBCDEF
B. EFCDBA
C. FECDAB
D. EFCDAB

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某二叉树中序序列为A，B，C，D，E，E G，后序序列为B，D，C，A，E G，E，则前序序列是( )。【南京理工大学2000一、14(1．5分)】

A. E，G，F，A，C，D，B
B. E，A，C，B，D，G，F
C. E，A，G，C，F，E，D
D. 上面的都不对

二叉树的先序和中序遍历序列分别是ABCDEFGH，CBEDFAGH，则后序遍历序列是( )。【南京理工大学2005一、5(1分)】

A. HGFEDACB
B. GHEDFCBA
CEFDBHGA
D. HGAFDEBC

submit oneself to substitute...for... little more than insofar as or so press for in conjunction with in the long run hold in check be rooted in Looking forwards from today, we already know that oil prices will fall ______ despite shrinking natural reserves. 考虑未来，我们已经知道即便石油的自然储备在减少，石油价格从长远来看仍会下降。

die hard give access to make peace take cognizance of by way of short of inherit from on the part of be involved in bring ... to bear on Indian sugarcane farmers score worse on intelligence tests before the harvest, when they are ______ cash, than after, seemingly suggesting that feeling poor lowers a person’s IQ. 印度的甘蔗农户在收割之前——即他们缺乏现金的时候——所做的智力测试比收割之后做的成绩要低，这似乎在暗示感到贫穷会降低一个人的智商。