Asootforcingisunusuallyeffective,which_________
Aproducesmuchmoreglobalwarmingthanacarbon-dioxideforcingofthesamemagnitude
Bcontr ibutedto25percentofobservedglobalwarming
Cwinterandspring
Dthewarmingeffectsincrease
Estillsurpasssootwarmingtheworld'sclimateduringthelastcentury
FcanbeseenmostlyintheNorthernHemisphere
答案及解析:本题定位到第五段最后一句话非常清楚,答案也很明显。



