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【单选题】
通过 SQL,您如 "Persons" 表中选取 "FirstName" 列的数据?A.
SELECT Persons.FirstName
B.
SELECT FirstName FROM Persons
C.
EXTRACT FirstName FROM Persons
D.
SQL 没有此项功能
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反馈参考答案：
举一反三
【简答题】在项目中创建窗体类ControlFormSize,在窗体中添加一标签控件,编写程序代码,设置窗体的标题、默认关闭方式与窗体大小,然后在标签控件中显示窗体设置的大小
【单选题】All her energies are ______upon children and she seems to have little time for anything else.
A.
guided
B.
aimed
C.
directed
D.
focused
【简答题】Gao Yuanyuan, a Beijing girl, is lucky. She seems to have everything that most girls can only dream of. Her pretty face and slim figure were spotted by a talent scout (星探) when she was only 16. Now he...
【简答题】利用染色体变异育种的是
【单选题】All her attention is ____ on her children and she seems to have little time for anything else. [ ]
A.
guided
B.
aimed
C.
directed
D.
concentrated
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