同一感受器接受不同的刺激而使感受性发生变化的现象是()

A．感受怕

B．感受性的补偿

C．联觉

D．感觉适应

E．感觉对比

— Could you tell me _____?

—  You mean yesterday? [ ]

A. how the passengers are saved

B. how are the passengers saved

C. how the passengers were saved

D. how were the passengers saved