問題詳情
【題組】60The passage implies that 3-D’s effects on health ________.
(A) are of great concern to engineers
(B) should be investigated with research
(C) will probably increase in future
(D) could lead to dangerous diseases
參考答案
答案：D[無官方正解]
難度：適中0.466667
統計：A(2),B(4),C(2),D(8),E(0)