Which three statements are true about DAI？（） A: DAI intercept all ARP packets on untrusted ports B: DAI determines the validity of an ARP packet based on the valid MAC address-to-IP address bindings stored in the DHCP Snooping database. C: DAI is used to prevent against a DHCP Snooping attack. D: DAI forwards all ARP packets received on a trusted interface without any checks. E: DAI forwards all ARP packets on untrusted ports. F: DAI determines the validity of an ARP packet based on the valid MAC address-to-IP address bindings stored in the CAM table.

弥漫性轴索损伤DAI

______is the Dai people’s New Year, as well as the most important traditional festival observed by the Dai people in Xishuangbanna and other places.

Dai minority is reputed as the “Ethnic Group of ________”.

______is the Dai people’s New Year, as well as the most important traditional festival observed by the Dai people in Xishuangbanna and other places. A: The Water-Splashing Festival B: Horse Racing

以下是目标变量在训练集上的 8 个实际值 [0,0,0,1,1,1,1,1]，目标变量的熵是所少（） A: -（5/8 log（5/8） + 3/8 log（3/8）） B: 5/8 log（5/8） + 3/8 log（3/8） C: 3/8 log（5/8） + 5/8 log（3/8） D: 5/8 log（3/8） – 3/8 log（5/8）

以下代码描述的是？assign out = (in == 3'b000 ) ? 8'b0000_0001 : (in == 3'b001 ) ? 8'b0000_0010 : (in == 3'b010 ) ? 8'b0000_0100 : (in == 3'b011 ) ? 8'b0000_1000 : (in == 3'b100 ) ? 8'b0001_0000 : (in == 3'b101 ) ? 8'b0010_0000 : (in == 3'b110 ) ? 8'b0100_0000 : (in == 3'b111 ) ? 8'b1000_0000 : 8'h00; A: 编码器 B: 译码器 C: 多路复用器 D: 比较器

在Excel2016中,要在单元格中输入分数“3/8”,下列输入方法正确的是( ) A: 3/8 B: C: 3/8 D: '3/8 E: 0 3/8

已知x(n)={1, 2, 3}，y(n)={1, 2, 1}，则x(n)*y(n)=________。（下划线表示n=0） A: {1, 4, 8, 8, 3} B: {1, 4, 8, 8, 3} C: {1, 4, 8, 8, 3} D: {1, 4, 8, 8, 3}

中国大学MOOC: Which of the following would Yi Dai NOT do?