当前福建省正加快建设“海峡西岸经济区”，其中“海峡”指的是 [ ]
A、琼州海峡
B、马六甲海峡
C、朝鲜海峡
D、台湾海峡
答案：D
Kate had a terrible time this summer. Not a day ________ without having some unpleasantness with her sister at home.
A．she spent
B．she had spent
C．did she spend
D．had she spent
目前大气中CO2浓度增加的主要原因是（）
A.日益增长的人口的呼吸作用
B.化石燃料和木材的燃烧
C.火山爆发
D.臭氧层被破坏
