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【单选题】
在反合色谱法中固定相与流动相的极性关系是( )
A.
固定相的极性>流动相的极性
B.
固定相的极性
C.
固定相的极性=流动相的极性
D.
不一定,视组分性质而定的
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【判断题】想查找某位发表老师的文章,首选的检索途径是主题查询。
A.
正确
B.
错误
【判断题】T3-5.账户是根据会计科目设置的,具有一定格式和结构,用于分类反映计要素增减变动情况及其结果的载体。( )
A.
正确
B.
错误
【单选题】当输入电压为正弦信号时,若 NPN 管共发射极放大电路发生饱和失真,则输出电压的波形将
A.
正半周削波
B.
负半周削波
C.
不削波
【判断题】想查找某位发表老师的文章,首选的检索途径是主题查询。
A.
正确
B.
错误
【判断题】供应链管理主要涉及到 3 个主要领域:供应、生产计划、物流。
A.
正确
B.
错误
【判断题】T3-5 账户是根据会计科目设置的,具有一定格式和结构,用于分类反映会计要素增减变化情况及其结果的载体。
A.
正确
B.
错误
【单选题】若整数的加减法指令的执行结果发生溢出则影响( )位。
A.
SM1.0
B.
B  SM1.1
C.
SM1.2
D.
SM1.3
【单选题】______ is true to say that a dog is man's best friend.
A.
That
B.
What .
C.
It
【单选题】A true friend is the one that is coming in the door while else is going out.
A.
somebody
B.
no one
C.
nobody
D.
everyone
【单选题】Which of the following is NOT TRUE according to the text?
A.
By culture the author means something that people have in common in relation to their ideas, art, or their way of life.
B.
All animals are found to have the same culture as human beings.
C.
The ability to use tools used to serve as a dividing line between human beings and animals.
D.
Many things that animals used to be considered unable to do are now proved possible.
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