問題詳情

【題組】16.The author suggests that astronomers consider the study of cosmic jets to be
(A)an obsolete scientific field
(B)an unprofitable venture
(C)an intriguing challenge
(D)a subjective debate

參考答案

答案：C
難度：非常簡單1
統計：A(0),B(0),C(2),D(0),E(0)