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【简答题】
试简述 KMnO4标准溶液的配制方法。
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举一反三
【单选题】The person who comes ________ won't get anything for the contest. [ ]
A.
in second
B.
in the second
C.
to second
D.
to the second
【单选题】The word 'tearaway' in the second paragraph probably means
A.
an intelligent person.
B.
an in'esponsible person.
C.
a mysterious person.
D.
a famous person.
【简答题】A．The second and fifth. B．Only the sixth. C．Only the second. D．Both th6 second and sixth.
【单选题】The word 'zombie' in the second paragraph probably refers to
A.
a person who is busy all the time.
B.
a person who always acts as a leader.
C.
a person who behaves like a robot.
D.
a person who is successful in some area.
【多选题】对非关税贸易壁垒,下面说法正确的有( )
A.
是贸易保护的主要手段
B.
比关税措施更具灵活性
C.
对进口的限制是绝对的
D.
比关税措施更具歧视性
E.
主要通过一国的立法程序设立
【简答题】在Excel 中，假定存在一个数据库工作表，内含：姓名，专业，奖学金，成绩等项目，现要求对相同专业的学生按奖学金从高到低进行排列，则要进行多个关键字段的排列，并且主关键字段是 ____________ 。
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