snowshoehare是什么意思
...the professor, what causes the snowshoe hare’s fur to b_百度...
Professor: As the days get shorter, that is, as the Sun is up for a shorter and shorter time each day, the snowshoe hare starts growing white fur and shedding its brown fur. 教授说当白天变得越来越短，北美野兔的灰色皮毛会慢慢退掉，长出白色的皮毛。所以A 选项正确。
Professor: As the days get shorter, that is, as the Sun is up for a shorter and shorter time each day, the snowshoe hare starts growing white fur and shedding its brown fur. 教授说当白天变得越来越短，北美野兔的灰色皮毛会慢慢退掉，长出白色的皮毛。所以A 选项正确。
