单项选择题

设一组权值集合W={2，3，4，5，6}，则由该权值集合构造的哈夫曼树中带权路径长度之和为（）。
A 20
B 30
C 40
D 45

你可能感兴趣的试题

单项选择题

We must ask the ad agency to provide a _______first to illustrate their message to be expressed in the commercial.
A、advertorial
B、radio spot
C、silhouette
D、storyboard

单项选择题

During the overshoot of an action potential, which of the following will be less than that during the resting state?()

A．Movement for sodium
B．Movement for potassium
C．Membrane permeability for sodium
D．Membrane permeability for potassium
E．Total membrane permeability