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【单选题】
下面属于可执行存储器的是()A.
寄存器和高速缓存
B.
高速缓存和主存储器
C.
寄存器和主存储器
D.
寄存器和磁盘缓存
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举一反三
【简答题】A．nervous B．happy C．excited D．frightened
【单选题】Which statement about Sal is true?
A.
Sal is the only child in her family because after giving birth to her, her mother died.
B.
Sal ’ s father was Mr. Middleton, a waterman.
C.
Sal lived in a family full of love and care although her family is as poor as Thornhill ’ s.
D.
Thornhill was haunted by the presence of so many brothers and sisters, while Sal was haunted by so many absences, and so the two of them didn ’ t enjoy a common ground.
【单选题】语句Delete emp where sal>2000;的作用是?
A.
将月薪sal大于2000的所有员工的月薪删除
B.
将月薪sal大于2000的所有表删除
C.
将月薪sal大于2000的所有员工的信息删除
D.
查询月薪sal大于2000的员工在哪里
【单选题】She was not______ frightened; in fact, she was nearly frightened to death.
A.
a bit
B.
a little
C.
at all
D.
much
【单选题】______ that he could not speak for a long time.
A.
so frightened was he
B.
so frightened he was
C.
was he so frightened
D.
frightened was he
【单选题】emp表是雇员信息表，sal字段存放是的雇员的月薪，以下哪个变量可以存放sal类型的值（）
A.
v_sal emp%rowtype;
B.
v_sal emp.sal%type;
C.
v_sal emp.sal.%type;
D.
v_sal %type(emp.sal);
E.
v_sal (emp.sal)%type;
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