布卢姆将认知目标分为知识、领会、运用、分析、综合、评价六个层次。()
参考答案:对
解析:题干是布卢姆认知目标的六个层次。
There is a system ________the waste is disposed of using the principles of ecology.
A.which
B.where
C.that
D.at which
小明家今年一月份的电费是10.25元,以后每月都比上月节约3.6元,则三月份小明家的电费是多少元?