题目内容

四环素类抗生素()

A. 易产生异构化反应
B. 具有荧光
C. 可与三氯化铁反应,产生不同颜色
D. 糖基部分易水解
E. 只能与酸成盐

查看答案
更多问题

当地下煤层被采出以后,其围岩及上覆岩层中的应力平衡状态被破坏,在岩层中常发生弯曲﹑冒落﹑片帮﹑岩石沿层面的滑移﹑跨落岩石的下滑﹑()等六种形式。

Which first-hop redundancy solution listed would supply Company clients with MAC address0000.0C07.AC0A for group 10 in response to an ARP request for a default gateway?()

A. IRDP
B. Proxy ARP
C. GLBP
D. HSRP
E. VRRP
F. IP Redirect

简述旅游经济学研究的对象和任务。

You are the administrator of a Windows 2000 network. You purchase 25 new portable computers that have a preinstalled version of Windows 98. You upgrade the 25 new computers to Windows 2000 Professional. You want to remove the Logoff option from the start menu on the 25 new computers. Which two methods can you use to accomplish this goal?()

A. On the advanced tab of the task bar and start menu dialog box, clear the Display log off option.
B. On the advanced tab of the task bar and start menu dialog box, clear the administrative tools option.
C. On the general tab of the task bar and start menu dialog box, clear the personalized menus option. Log off and then log on to the computers.
D. Use a local computer policy that will not include the logoff option on the start menu.
E. Use the user profiles tab within the properties of my computer to change the profile from the local profile to a roaming user profile.&e

答案查题题库