办理收支账户资金托管业务应当遵循（）的原则。
A. 保守秘密
B. 有偿服务
C. 不得垫款
D. 诚实守信
E. 勤勉尽责
F. 控制风险
G. 无偿服务
You are employed as the enterprise exchange administrator at TestKing.com. The TestKing.com networkconsits of a single Active Directory site. TestKing.com makes use of Microsoft Exchange Servermessaging solution. You are in the process of planning the deployment of Exchange Server 2010. The CIO provides you withthe set criteria needed to deploy the Exchange Server 2010 servers. TestKing.com wants you to ensurethat： * The Mailbox servers belong to the database availability group （DAG）. * The users are able to send and receive e-mail in the event of a single server failure. * The minimization of the amount of servers deployed. * The load balancing of MAPI connections form Outlook Clients using hardware load balancer.You need to plan the deployment to the Exchange Server 2010 servers to meet the above criteria. What should you do？（）
A. Your plan should include deploying four servers.The Mailbox server role as well as the Hub Transport server role should be configured on two serversand the Client Access server role on the remaining two.Therafter a Client Access server array should be configured.
B. Your plan should include deploying two servers.The Mailbox server role， the Client Access server role as well as the Hub Transport server role shouldbe configured on the two servers there after a Client Access server array should be configured.
C. Your plan should include deploying four servers.The Mailbox server role should be deployed on two servers and the Client Access server role and theHub Transport server role on the remaining two.Therafter Outlook Anywhere should be enabled on both Client Accessservers.
D. Your plan should include deploying two servers.The Mailbox serve role， the Client Access server role as well as the Hub Transport server role shouldbe deployed on the two servers.Thereafter Outlook Anywhere should be enabled on both Client Access Servers.
对于管线，机泵等产生的静电，可通过安装防静电接地装置加以消除。
A. 正确
B. 错误
下列线型缩聚反应中，达到相同聚合度时，允许体系中残存水份最大的是（）
A. 223℃时对苯二甲酸与乙二醇聚合生产涤纶（K＝0.512a－A－aaa＋5b－R－b＋R－a
B. 222℃时己二酸与己二胺聚合生产尼龙－66（K＝365）
C. 222℃时ω－氨基己酸聚合生产尼龙－6（K＝480）
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