[多选] 下面对图层蒙版的显示、关闭和删除的描述哪些是正确的？（）

肾上腺素可用于治疗（） 急性充血性心力衰竭。 急性过敏性休克。 慢性充血性心力衰竭。 急性心肌炎。 You are the network administrator for Company.Company’s Account Executives frequently travel to meet with customers. The Account Executives usetheir portable computers to demonstrate Company’s new software products. The Account Executivesneed to update these products frequently so customers can evaluate the latest software releases.  The Account Executives also need to be able to change display settings on their portable computers.You need to allow the Account Executives the ability to install and update software products while limiting their ability to perform other administrative duties on their portable computers. You need to accomplish this with the least amount of administrative effort. What should you do?（）  Add the Account Executive’s user accounts to the local Administrators group on their portable  computers. 。  Add the Account Executive’s user accounts to the Pre-Windows 2000 Compatible Access   group. 。  Add the Account Executive’s user accounts to the local Power Users group on their portable   computers. 。  Allow the Account Executive’s user accounts Full Control permission to the Program Files   folder on their portable computers. Propagate the permissions to all the subdirectories and   files in that directory.。 You are the desktop administrator for your company. The company's network consists of a single Microsoft Windows NT domain. The network contains 2,000 Windows XP Professional computers.  The information security department releases a new security template named NewSecurity.inf. You are instructed to apply the new template to all 2,000 Windows XP Professional computers. You use the Security Configuration and Analysis console to import NewSecurity.inf into a security database named NewSec.sdb. You copy NewSec.sdb to a folder named Sec on a server named Server1. You need to apply NewSecurity.inf to the Windows XP Professional computers. What should you do?（）  Use the Security Configuration and Analysis console to export a template named NewSec.inf from NewSec.sdb. Copy NewSec.inf to each client computer. 。 Write a logon script that copies NewSec.sdb to the %systemroot%\System32 folder on each client computer. 。 Copy NewSec.sdb to the Netlogon shared folder on each domain controller. 。 Write a logon script that runs the Secedit /configure /db \\Server1\Sec\NewSec.sdb command. Apply the logon script to all domain user accounts.&e。 Your ISP assigned you a full class B address space. From this, you need at least 300 sub-networks that can support at least 50 hosts each. Which of the subnet masksbelow are capable of satisfying your needs?（） 255.255.255.0。 255.255.255.128。 255.255.252.0。 255.255.255.224。 255.255.255.192。 255.255.248.0。 哲学的基本问题是（） 意识和物质的关系问题。 唯物主义和唯心主义的划分。 对世界观的看法问题。 物质决定意识。 下面对图层蒙版的显示、关闭和删除的描述哪些是正确的？（）