用超级终端来删除VLAN时要输入命令：S2126（config）# no vlan 0002 ! 这里：0002 指的是

向信息系学生视图IS_STUDENT中插入一个新的学生记录，其中，学号0002，姓名为王二小，年龄为16岁，正确的SQL语句是( )。 A: INSERT INTO IS_STUDENT B: VALUES('0002'，'王二小'，16) C: INSERT INTO IS_STUDENT D: VALUES(0002，'王二小'，16) E: SELECT INTO IS_STUDENT F: VALUES(0002，王二小，16) G: SELECT INTO IS_STUDENT H: VALUES('0002'，'王二小'，16)

用超级终端来删除VLAN时要输入括号内命令:(vlan database)/(no vlan 0002)/(exit),这里:0002 是指

沥青质的X射线衍射谱图在2θ≈26°处有（002）峰存在。

Activity 2 Watch the video clip and check(√)the topics that are mentioned.1 the definition of an e-book A: Mentioned. B: Not mentioned.

已知有理数t满足|1一t|=1+|t|，则|t一2006|—|1一t|=( )． A: 2 000 B: 2 001 C: 2 002 D: 2 005 E: 2 006

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

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

IPv6地址2000:0000:0000:0001:0002:0000:0000:0001采用零压缩法可以简写为2000::1:2:0:0:1

将学生张三从编号为001的系转到编号为002的系，应使用的SQL语句（ ）。 A: Updata 学生Set 系编号= ‘002’ B: Update 学生 set 系编号=’002’ Where 姓名=’张三’ and 系编号=’001’ C: Update 学生 set 系编号=’002’ Where 姓名=’张三’ D: Update 学生 系编号=’002’ Where系编号=’001'