問題詳情

【題組】41. In his research at Columbia University, Charles Townes worked with all of the followingEXCEPT ______.
(A) stimulated emission
(B) microwaves
(C) light amplification
(D) a master

參考答案

答案：C
難度：適中0.5
統計：A(4),B(2),C(7),D(1),E(0)