题目内容

Dialogue Two question one

A. Making an attractive introduction.
B. Presenting the information.
C. Asking interesting questions.
D. Making a good preparation.

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question two

A. Picking up a theme.
B. Delivering the presentation.
C. Designing a presentation.
D. Making a plan.

指状铣刀直径约为槽宽的______倍。

A. 1
B. 0.8
C. 0.5
D. 2

一棵无向树T有5片树叶、3个2度分支点,其余的分支点都是3度顶点,问:T有几个顶点_______。

设7个字母在通信中出现的频率如下:a:35%b:20%c:15%d:10%e:10%f:5%g:5%用Huffman算法求得的最佳前缀码传输100 个按上述比例出现的字母组成的字符串需要____bit。(本次习题总分30分)

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