加州汽油價格快升到4元一加侖，到底甚麼導致汽油價格上升?
Cheaper gas price during July 4th holidays
Fri Jun 29, 2012 By Leave a Comment
美國國慶快到來，剛好近日汽油價格有所下降，會否吸引更多民眾駕車外遊呢…
Prediction on gas prices
Mon Mar 26, 2012 By Leave a Comment
Professor and Director of Energy Institute at the UC Berkeley, Severin Borenstein, predicts gas prices most likely won’t go up to $5 a gallon…