8-2答案

函数单调性的定义

1: C
2: D
3:

函数的表示法

1: C
2:
2 , 1/2
3:
（）
（）
（）值域为，当时，函数值随自变量的增大而增大，当时，函数值随自变量的增大而减小，当时，函数值随自变量的增大而增大．

记叙文-writing

1. (1) :
   good, close, harmonious, etc
2. (2) :
   In the final part of one race, Jonny was about to fall and Alistair was near him.
3. (3) :
   Alistair would choose to help his brother win the race. Because from the 1st paragraph we can know that the brothers usually encourage and support each other.

力的合成

1:
甲
2: B,C
3:
这两个力的合力大小为

氧化还原反应中的强弱规律

1:
√ , × , × , ×
2: A

走进二十大——什么是中国式现代化

1: C
2: B

要想“富”，先修路！

1. (1) : A
2. (2) : D