The skyscrapers are also lavish consumers and wasters of electric power.

中国大学MOOC: "The skyscrapers are also lavish consumers and wasters of electric power." In this sentence, the words "consumer" and "waster" can be translated into "消费者” and “浪费者”.

Discards have been used by the Garbage Project to study ______. A: the proportion of materials which break down within landfills B: how much people eat and drink in their daily lives C: the fluids that leak out of MSW landfills D: how to compose the landfill wasters