問題詳情

【題組】52. Who is John P. Allen?
(A) A NASA astronaut.
(B) A space shuttle mechanic.
(C) A professor of physics.
(D) A biosphere researcher.

參考答案

答案：D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)