【单选题】Do you ever feel like the weather is out to get you? All week long, it seems, you sit inside at school while the sun shines outside. Then, as soon as the weekend comes, the sky turns gray. There's rai...
the sky always turns gray only on weekends.
in the Midwest, weekdays saw larger daily temperature variations sometimes.
this difference measurement is called DTR, meaning the daytime temperature range.
part of the study involved 660 weather stations only in the United Nation.