域名EDU表示【1】

电路如图所示，晶体管处于（）。https://edu-image.nosdn.1...=520x520&quality=100

1. For an image with 100 * 100 pixels, each pixel has 8-bits to express its gray scale.If the data volume of the compressed image is 40000 bits after Huffman coding , the compression ratio of the image is ( ). A: A. 4:1 B: B. 3:1 C: C. 1:2 D: D. 2:1

Which of the following statements about image texture is correct: refers to which characteristics of the image? ( ) A: Image texture is the relative brightness of objects in the image B: Image texture is the apparent roughness of an image region C: Image texture is the apparent smoothness of an image region D: Image texture is the frequency of tonal change on an image

设特征方程为http://edu-image.nosdn.1...茨判据确定使系统稳定的K的取值范围。（

在下列的 HTML 中，______可以产生超链接 A: EDU B: EDU C: http:// www.edu.cn D: EDU

Which of the following is not a description of image texture? （ ） A: the frequency of tonal change on an image B: the apparent roughness of an image region C: the apparent smoothness of an image region D: relative brightness of objects in the image

主机域名的正确书写格式是( )。 A: Mail、tjnu、edu、cn B: Mail,tjnu,edu,cn C: Mail tjnu edu cn D: Mail.tjnu.edu.cn

在教育网内搜索“登陆火星”方面的信息，下面的检索式哪些可以达到这个目的？（） A: "marslandings"+domain：edu B: 火星+登陆+domain：edu C: 火星+登陆+url：edu D: landing+title：mars+url：edu

已知串s="www.hist.edu.cn"，串t="edu"，则Index(s,t,1)的值为（）。 A: 3 B: 10 C: 1 D: 11