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【单选题】
What ______ just now? [ ]A.
was happened
B.
were happened
C.
happened
D.
happens
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举一反三
【单选题】—Where________? —He has left a (n) ________ saying that he has something important to do. [ ]
A.
has Tom gone; message
B.
has Tom been; note
C.
will Tom go; word
D.
did Tom go; excuse
【单选题】现有客户表名为Clients,该表包含Email列（有效的email地址必须在@符号前至少有一个字符,".com"前@符号后至少有一个字符。）现需要查询出正确的Email地址的客户所有信息。应使用（ )T-SQL语句。
A.
select * from Clients where Email like ‘_ @_%.com’
B.
select * from Clients where Email like ‘%@%.com’
C.
select * from Clients where Email like ‘_%@_%.com’
D.
select * from Clients where Email like ‘_%@%.com’
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