债务成本估价方法主要有（）。 ["A.到期收益率法 ","B.可比公司法 ","C.风险调整法 ","D.财务比率法"]
You are the network administrator for Your network consists of a single Active Directory domain named All domain controllers run Windows Server 2003. TestKing consists of a main office and two branch offices. The company expands to an additional branch office. This branch office has very little available network bandwidth. You need to install a new domain controller named DC9 at the new branch office. Your installation must minimize costs and network traffic. What should you do?（） [" Back up the System State data of an existing domain controller on removable media. Mail a physical copy of the backup to the branch office. Use the backup to install Active Directory on DC9."," For the branch office, create a new Active Directory site that contains no other domain controllers. Install Active Directory on DC9."," Place DC9 on an IP subnet that already contains a domain controller. Install Active Directory on DC9. Physically transport DC9 to the branch office."," Back up the System State data of an existing domain controller. Compress the backup. Copy the backup to DC9 at the branch office. Uncompress the backup. Use the backup to install Active Directory on DC9."]
什么是动作电位？简述其产生机制。
下列有关锅炉的安全阀的叙述哪些不符合《蒸汽锅炉安全技术监察规程》的规定（） ["锅炉的安全阀应采用微启式弹簧安全阀、杠杆式安全阀和控制式安全阀","对于额定蒸汽压力小于或等于0.1MPa的锅炉，可采用静重式安全阀","锅炉的安全阀应采用全启式弹簧安全阀、杠杆式安全阀和控制式安全阀","对于额定蒸汽压力小于或等于0.1MPa的锅炉，不可采用水封式安全装置"]
创先争优活动中党员承诺应当经过党员提诺、组织审诺、签名定诺、公开示诺、认真践诺、民主评诺等步骤。（）
据《河南省水痘减毒活疫苗接种指导意见》，某省水痘减毒活疫苗的使用原则是什么？
