Dynamics CRM当中
You plan to create a field that will store email addresses.
You need to ensure that a user can send an email message by clicking the email address
in the new field.
Which type of data should you use for the field?
A. Lookup
B. Two Options
C. Single Line of Text
D. Option Set
选 C. Single Line of Text
这题是为了实现输入的email地址能直接点击发送信息，那么应该是选D
2楼正解。程序员必备技能，百度+有道。