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Dear Lihua, I’m very glad to have received a letter you sent me 小题1: ______________ two weeks ago. I had been thinking about the question you 小题2: ______________ asked me. In my opinion, you should come back before 小题3:______________ you finish your studies abroad. For one reason, which you 小题4: ______________ are studying is badly needed nowadays in China. That will 小题5:______________ be pretty easy for you to find a good work. In fact, I know a 小题6:______________ few big companies in one city is hoping to hire people 小题7:_____________ like you. For other reason, I think it will be more convenient 小题8: ______________ for you to look after your parents as they are getting old. 小题9: _______________ Therefore, I think it’s a good idea for you to return back. 小题10:_______________ Best wishes! Minghua
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【简答题】促进铁吸收的因素主要包括蛋白质、肉类因子和维生素C。（ ）
【简答题】若某非空二叉树采用顺序存储结构，结点的数据信息依次存放于一个一维数组中(假设数组的第一个元素的下标为1)，下标分别为i和j的两个结点处在树中同一层的条件是__________。(i≠j≠1)【北京航空航天大学2006一、6(1分)】
【简答题】一颗完全二叉树采用顺序存储结构,结点的存放次序是ABCDEFGHIJ,则改完全二叉树的先序遍历序列是( )。(序列间不需要加任何间隔)
【单选题】关于二叉树顺序存储结构不正确的描述是？（）。
A.
二叉树顺序存储结构是用一组连续的存储单元存放二叉树中的结点
B.
完全二叉树采用顺序存储结构，树结点在顺序存储单元中的下标能反映结点之间的逻辑关系
C.
满二叉树采用顺序存储结构，树结点在顺序存储单元中的下标不能反映结点之间的逻辑关系
D.
右单支树用顺序存储结构存储时会浪费大量的空间
【单选题】对于任意一棵高度为 5 且有 10 个结点的二叉树，若采用顺序存储结构保存，每个结点占 1 个存储单元（仅存放结点的数据信息），则存放该二叉树需要的存储单元的数量至少是：
A.
31
B.
16
C.
15
D.
10
【单选题】Which statement is true of the methane emissions 0f plants in the experment?
A.
The lower the temperature，the higher the amount 0f methane emissions．
B.
LiVing plants release less methane than dried plants at the same temperature．
C.
When exposed t0 sunlight，plants stop releasing methane．
D.
The higherthe temperature，the greater the amount of methane emissions.
【单选题】Which of the following statement is correct about the weather in T exas?
A.
T exas has di f ferent kinds of weather patterns as it is such a big state.
B.
Th e weathe r i n Alask a mus t b e mor e varie d tha n tha t i n T exas , sinc e i t cover s a la r ge r area.
C.
T exas has the coldest place in winter in the US.
D.
T exas has the warmest place in summer in the US.
【简答题】二叉树的顺序存储结构是用_________________存储二叉树的数据元素。
【简答题】若某完全二叉树采用顺序存储结构，结点信息存放的次序是A，C，B，E，F，D，则该二叉树的后序遍历序列为（）
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