单项选择题

The airborne particulates tend to wind up in the Northeast "airborne" here means.

A．produced by air
B．emerged in the air
C．floating
D．polluting
<上一题 目录 下一题>
热门 试题

单项选择题
The damaging effects of acid rain are felt less in the West because _________.
A．Western parts produce much less than a quarter of sulfur oxide emissions
B．Western soils can neutralize the acid
C．Westernly wind spread participants out of the western regions
D．chemical industry is less developed in the western states
单项选择题
The least serious damage caused by acid rain is _________.
A．poisoning of plant roots
B．leaching of heavy metals
C．changing the blood chemistry in
D．corrosion of metal structures
相关试题