根据“What is the dirtiest thing in our homes? The toilet? Wrong! Scientists in the US have found that electronic devices (设备) are even...”可知,此处是在对比家中物品的脏污程度,且前文已否定马桶是最脏的,因此应填“dirtier”,表示电子设备比马桶更脏。故选D。 (2)题详解: 句意:他们计算了...
Steel demand is ballooning in the South Asian nation thanks to a wave of infrastructure projects and swelling demand for new homes. A lot of new output is emerging from small-scale plants that are relatively easy to build, but highly polluting. Article content Article content The so-called...