問題詳情
【題組】44. Which following statement is NOT true?
(A)We can prove nanotech is by all means harmful to human beings.
(B)Nanotech is a new tech of researching how to use tiny things in various devices.
(C) Presently we don’t know for sure how exactly nanotech influences our environment and health.
(D) Many countries invest lots of money in nanotech.
參考答案
答案：A
難度：適中0.411765
統計：A(7),B(3),C(1),D(5),E(0)