原题
录音 1
According to the talk, why do the colors on a soap bubble keep shifting?
ABecause air currents scatter the light unevenly
BBecause pigments inside the bubble move around
CBecause the bubble absorbs different colors as it grows larger
DBecause certain features of the light and the bubble keep changing
正确答案：D
解题思路
老师暂未填写解题思路。