问题
单项选择题
Under proper conditions, sound waves will be reflected from the hillside or other such obstruction.
A．mirrored
B．bounced back
C．absorbed
D．soaked through
答案
参考答案：B
解析：[分析] 动词辨析 reflected表：反射，反映，表现，细想；而选项A．mirrored反映，映出；B．bounced back反弹回，反跳；C．absorbed吸收，吸引；D．soaked through浸透；在此因指声波的反弹/回声，因此B为答案。