問題詳情

【題組】47.Which two types of chemical reaction are described in the passage?     
(A) Electrical and physical.         
(B) Natural and man-made.     
(C) Large and small.               
(D) Common and rare.

參考答案

答案：B
難度：適中0.615385
統計：A(2),B(8),C(1),D(1),E(0)