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【单选题】
为了防止不确定因素出现而准备的缓冲库存又称为A.
周转库存
B.
安全库存
C.
在途库存
D.
预期库存
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举一反三
【单选题】According to the given article, which of the following statements is NOT true?
A.
Pop music is being blamed by the United Nations for the dramatic rise in drug abuse worldwide.
B.
Pop music is by far the most influential trend-setter for young people of most cultures.
C.
The UN study also blames the media for its description of certain drug issues— especially the use of marijuana and issues of liberalization and legalization.
D.
The present study focuses on the issue of demand increase and prevention within an environment that has become tolerant of drug abuse.
【单选题】The main idea of the last paragraph is
A.
the treatment of the skin cancer.
B.
the prevention of the skin cancer.
C.
the parts of the body where cancer is most likely to develop.
D.
the lotions that work best in fighting against the skin cancer.
【简答题】弹出“填充”对话框的快捷键是什么?
【多选题】以下( )可以作为紫外-可见分光光度法定性的依据。
A.
比较吸收光谱的形状
B.
比较最大吸收波长
C.
比较吸光系数值
D.
比较各吸收峰的波长位置
E.
比较吸收峰的数目
【简答题】SPECT的中文是______________，PET的中文是______________。
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