The first method: in the same day, the greater the difference between day and night, the higher the latitude; conversely, the smaller the difference between day and night, the lower the latitude. Calculate the difference between the length of day and the length of night in four places and compare them.

The second method: On the same day, the closer the sunrise time is to 6 o'clock, the lower the latitude and the higher the latitude from 6 o'clock.

Here I use the second method:

A sunrise at 2 o'clock, 4 hours before 6 o'clock;

B sunrise at 5 o'clock, distance at 6 o'clock 1 hour;

Sunrise at c 8, 2 hours from 6: 00;

1 1 sunrise, 5 hours before 6: 00.

Therefore, the latitude of the four places from high to low is: d.

1 1. In the same place, the closer the sunrise is to 6 o'clock, the closer it is to the vernal equinox. On the contrary, the farther away from 6 o'clock, the farther away from the vernal equinox.

From the comparison of the above questions, we can get: C.E.P.A.D