【单选题】主机A运行Unix操作系统,IP地址为202.113.224.35,子网掩码为255.255.255.240;主机B运行Linux操作系统,IP地址为202.113.224.38,子网掩码为255.255.255.240。它们分别连接在同一台局域交换机上,但处于不同的VLAN中。主机通过ping命令去ping主机B时,发现接收不到正确的响应。可能的原因是()。
【单选题】前后轴荷分配最佳的传动系统布置型式是()。
【单选题】主机A运行Unix操作系统,IP地址为202.113.224.35,子网屏蔽码为255.255.255.240;主机B运行Linux操作系统,IP地址为202.113.224.38,子网屏蔽码为255.255.255.240:它们分别连接在同一台局域交换机上,但处于不同的VLAN中:主机通过ping命令去ping主机B时,发现接收不到正确的响应:请问可能的原因是:
【判断题】任何一个图像图层都可以转换为背景层,背景层可以转化为普通的图像图层,图层透明的部分是没有像素的。
【多选题】机械式传动系统的布置形式有 ( )种布置型式。
【单选题】The results of Study2 suggest that which of the fol-lowing factors most affects the seed preference ofants?
C.
Percentage of seed mass composed of elaiosome
D.
Abundance of a plant in a given area
【单选题】The word 'population' in this passage is closest in meaning to which of the fol-lowing?
【单选题】Which of the fol lowing is NOT true?
A.
Floranee bought a lot for the wounded with her money.
B.
Floranee’s firends lent money to her to help her.
C.
Floranee got her pay in smiles from the dying soldiers.
D.
The wounded and dying thanked her very much.