北方冬天菜窑里放入几桶水,可以利用水______使窑内温度不致太低,菜不会冻坏.
北方的冬天,菜窖里放几桶水,水在凝固时放热,可使窖内温度不会太低,莱不致冻坏.
故答案是:凝固放热.
翻译。
1. We are Grade 3 student.
__________________________________________
2. I draw a picture with markers.
3. I like your skirt.
4. I have a banana and some cookies.
5. Would you like some meat?
什么是体育社会学?简述体育社会学的研究对象、内容和社会功能。(重点)