Match the event mentioned in the text with the responding description.“Night of Darkness” in Belgium: ____________. ( ) A.Businesses turn off or dim all decorative lighting at night during bird migration season. B.Street and public lighting are switched off for one night every year to promote the issue of light pollution. C.Promoted by CPRE, it is both annual and national event that runs for a week from 20 January. D.It was organized in 2007, but for only one hour on one day.
正确答案:B