You need to ensure that SMTP e-mail messages can be delivered when the messages are sent to addresses that end with @fourthcoffee.com and are intended for the Exchange Server 5.5 environment. Which three courses of action should you perform？（）
A. Create mail-enabled contacts in the fourthcoffee.com domain for each Exchange Server 5.5 recipient. Establish the e-mail address to have an address that ends with @oldmail.fourthcoffee.com
B. Create mail-enabled contacts in the fourthcoffee.com domain for each Exchange Server 5.5 recipient. Establish the e-mail address to have an address that ends with @fourthcoffee.com
Configure each Exchange Server 5.5 recipient to have an address e-mail address that ends with @oldmail.fourthcoffee.com. Set the @oldmail.fourthcoffee.com address to be the default reply address
D. Configure each Exchange Server 5.5 recipient to have an additional e-mail address that ends with @oldmail.fourthcoffee.com. Set the @fourthcoffee.com address to be the default reply address
E. Configure each Exchange Server 5.5 recipient to use a single SMTP address that ends with @oldmail.fourthcoffee.com
F. Configure an SMTP connector between the Exchange Server 2003 routing group at the Sydney office and the Exchange Server 5.5 site at the Sydney office. Configure the connector namespace to be oldmail.fourthcoffee.com
G. Configure an SMTP connector between the Exchange Server 2003 routing group at the Sydney office and the Exchange Server 5.5 site at the Sydney office. Configure the connector namespace to be fourthcofee.com
用一钳型电流表测量三项对称电路电流，如果将三相导线均放入钳口中，电流表指示为（）。
A. 正常相电流；
B. 三相电流；
C. 零；
D. 三相电流的代数和。
从社会功能看，语言是（）工具，也是（）工具；从语言本身的结构性质来看，语言是（）。
干式水表使用技术规范主要有最大流量、（）最高压力、安装方式、适用管径、适用介质等。
A. 最小流量
B. 瞬时流速
C. 瞬时流量
D. 工作压力
微信支付 
支付宝支付