适应
参考答案：同一感受器内，由于刺激物对感受器的持续作用而使感受性发生变化的现象叫适应。
当代人文社会科学注重应用研究的趋势主要表现在哪些方面？
---I don’t know _______. Can you help me? ---I think you should calm down and read texts.
A．how to do
B．what to do it
C．what to do
D．when to do
