在辐射强烈的作业场合如氩弧焊时，应穿普通的工作服，并戴好通风帽。在高温条件下应穿石棉工作服。工作地点周围，应尽可能放置屏蔽板，以免弧光伤害别人。()
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特殊情况时，利用厂房的金属结构、轨道、管道或其他金属物体搭接起来作电焊导线电缆。()
What is true about Earl Millers research？
A. It discovers neuroplasticity.
B. It is the first study of this kind.
C. It studies one environmental feedback.
D. It attests to one cause of neuroplasticity.
The saying "sui generis" (Para. 5) is closest in meaning to _____.
A. unique
B. touching
C. overwhelming
D. mysterious
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