标准煤应用基低位发热量规定为多少?
参考答案:
7000kcal/kg。
Tomorrow is Thursday. What day is it today? [ ]
A. It's Friday.
B. It's Wednesday.
C. It's Tuesday.
在农业领域加快推动(),构建循环型农业体系。
A.产业链接循环化
B.资源利用节约化
C.生产过程清洁化
D.废物处理资源化