問題詳情

What is the major concern of the 2nd paragraph?
(A)The out-of-the-way places of the earth
(B) The sophistication of the experiments
(C) The untiring efforts of the scientists
(D)The understanding of the strange rays

參考答案

答案:C
難度:適中0.547945
統計:A(4),B(4),C(40),D(21),E(0) #
個人:尚未作答書單:Word

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