题型:单选题 题类:常考题 难易度:普通
类型 |
频数 |
频率 |
A |
30 |
x |
B |
18 |
0.15 |
C |
m |
0.40 |
D |
n |
y |
学生 垃圾类别 |
|
|
|
|
|
|
|
|
厨余垃圾 | √ | √ | √ | √ | √ | √ | √ | √ |
可回收垃圾 | √ | × | √ | × | × | √ | √ | √ |
有害垃圾 | × | √ | × | √ | √ | × | × | √ |
其他垃圾 | × | √ | √ | × | × | √ | √ | √ |
试题篮