问题:
A . Lightactivation by stimulation emanation of radiation
B . Luminant amplimeter by stimulation emission of radiation
C . Lightactivation by strongemission of radiation
D . Luminant activation before strong emission of radiation
E . Light amplification by stimulation emisssion of radiation
● 参考解析
主要考查学生对laser一词的英文构成及理解。
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