皮皮学，免费搜题
登录
搜题
【单选题】
Your company has a single active directory domain named contoso.com. all servers run windows server 2008. You have a public DNS server named server1, and an e-mail server named server2. Client computers outside the company domain are unable to send e-mail messages to contoso.com. you verify that the host (A) DNS record for server2 is available to external client computers. You need to ensure server2 can receive e-mail messages from external client computers. How should you configure the contoso.com DNS zone?（）A.
Add a mail exchange (MX) record for server2.
B.
Add a mailbox (MB) record for server2. Set the mailbox host setting to server2.
C.
Add a canonical (CNAME) record that maps server2 to contoso.com.
D.
Add a server locator (SRV) record for server2. Set the service field to _smtp. Set the protocol field to _tcp. Set the port number to 25.
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】根据《药品说明书和标签管理规定》规定，有关药品包装.标签和说明书说法错误的是（ ）
A.
药品包装必须按照规定印有或者贴有标签
B.
药品包装可以夹带介绍或者宣传产品.企业的文字.音像及其他资料
C.
药品说明书和标签中的文字应当清晰易辩，标识应当清楚醒目
D.
药品说明书由国家药品监督管理局予以核准
E.
药品说明书和标签的文字表述应当科学.规范.准确