問題詳情

【題組】60. What is the best title for this article?
(A) What Can Nanotechnology Do for Us
(B) A World of Grey Goo
(C) Amazing Technology
(D) How to Produce Grey Goo

參考答案

答案：B
難度：非常困難0
統計：A(0),B(0),C(0),D(0),E(0)