求证:BE=DF.
月份/地区 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
A区 |
115 |
108 |
85 |
100 |
95 |
50 |
80 |
70 |
50 |
50 |
100 |
45 |
B区 |
105 |
95 |
90 |
80 |
90 |
60 |
90 |
85 |
60 |
70 |
90 |
45 |