試題詳解

19. Please rearrange the following sentences into a coherent paragraph. (1) Air is forced upwards where it passes through a photo-catalyst filter to sterilize bacteria and viruses, before being released into the atmosphere. (2) As well as providing clean air, the repository of carbon particles captured could go on to find use in graphene, concrete, fertilizer, ink and water distillation. (3) Each is capable of producing more than 353 million cubic feet of clean air per day, serving an area of 100 hectares. (4) Inflows at the base of a tower suck in air and pass it through five stages of filtration--including charcoal-activated carbon, negative ion generators and electrostatically-charged plasma--to trap airborne particles. (5) The Smog Project comprises a vast array of 328 feet-high air filtration pods.
(A) 43125
(B) 42531
(C) 54123
(D) 53412