对于给出的一组权w={10, 12, 16, 21, 30},通过霍夫曼算法求出的扩充二叉树的带权外部路径长度为
A.89
B.189
C.200
D.300
参考答案:C
We can infer from Paragraph 2 that Lord Lothian_______.
A.Donated all his money to the Trust.
B.Started the “Country House Scheme”.
C.Saved many old country bouses in Britain.
D.Was influential in his time
温病学的发展过程中,其萌芽阶段是()时期,成长阶段是宋至金元时期,形成阶段是明清时期。