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【判断题】
在原子吸收光谱分析中,发射线的中心频率与吸收线的中心频率一致,故原子吸收分光光度计中不需要分光系统。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】电路中 电路中感应电动势的大小,跟穿过这一电路的磁通变化率成正比,这就是( ) 感应电动势的大小,跟穿过这一电路的磁通变化率成正比,这就是电磁感应定
【单选题】马林诺夫斯基对文化的定义为：“一个满足人的要求的过程，为应付该环境中面临的具体、特殊的课题，而把自己置于一个更好的位置上的工具性装置。”这个定义属于（）
A.
描述性定义
B.
社会性定义
C.
主体性定义
D.
功能性定义
【简答题】感受态(名词解释)
【单选题】Civil wars that broke out in England between supporters of the House of Lancaster and the House of York in the 15th century are also known as
A.
the Seven Years' War.
B.
the Hundred Years' War.
C.
the Wars of Roses.
D.
the War of Independence.
【单选题】回答{TSE}题： {TS}A series of dynastic civii wars between supporters of the House of Lancaster and the House of York in the l5th century are also known as
A.
Seven Years’War．
B.
the Hundred Years’War．
C.
the Wars of the Roses．
D.
War of Independence．
【简答题】受体细胞的感受态是______。
【简答题】人工感受态和自然感受态细胞都能吸收线性和环状单链DNA。
【单选题】Supporters of the biotech industry have accused an American scientist of misconduct after she testified to the New Zealand government that a genetically modified(GM) bacterium could cause serious dama...
A.
between American and New Zealand biologists over genetic modification
B.
as to whether the study of genetic modification should be continued
C.
over the possible adverse effect of a GM bacterium on plants
D.
about whether Elaine Ingham should be fired by her university
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