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【简答题】
空心阴极灯是一种______光源，它的发射光谱具有______的特点。当灯电流太大时，由于______的影响，导致谱线轮廓______，测量灵敏度______。工作曲线______，灯寿命______。
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反馈参考答案：
举一反三
【简答题】数控电火花成形机床的工作原理是什么?
【单选题】_________as one of the most important inventions of the time, the computer helps people living in different countries to do a lot of things.
A.
Knowing
B.
Known
C.
To know
D.
Know
【单选题】Which sentence is TRUE? ___________.
A.
Framing is about focusing, shaping, and organizing the world around us but does not define persons, events or processes.
B.
Frames are important in negotiation because disputes are often nebulous and open to different interpretations.
C.
A characterization frame can clearly be shaped by experience with the other party but identity frames (of self) tend to be negative while the characterization frames tend to be positive.
D.
Disputes over rights are sometimes referred to formal or informal arbitrators to decide whose standards or rights are more appropriate.
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