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【单选题】
在一个表中若要设定主键,应使用( )。A.
Primary Key
B.
Check
C.
Unique
D.
Foreign Key
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【简答题】纳税人采用销售折扣方式销售货物的,在计算增值税销项税额时,不得从销售额中减除折扣额。____
【简答题】根据句意及首字母提示完成下列句子。 1. You can take the e to the second floor. 2. Could you please tell me if there are any public r_____ around here? 3. —Excuse me. Can you tell me where I can buy some writing paper? ...
【多选题】Please take the chair _______ is over there.
A.
who
B.
whom
C.
that
D.
which
E.
Ø
F.
whose
【简答题】请从网上查找10个常用的编程语言,并简要说明其主要应用领域。
【单选题】Please ask the lawyer what his ________ would be to take the case to court. [ ]
A.
fare
B.
charge
C.
fee
D.
expense
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