单项选择题A.They could work for 24 hours a day.B.They were worse hunters.C.They were more persistent hunters.D.They worked the whole night.
单项选择题A.216,000B.206,000C.260,000D.266,000
单项选择题A.The study of Emu oilB.the use of Emu oilC.The effect of Emu oilD.neither of above choices
单项选择题A.the rapid growth in world oil consumptionB.the rise of China and IndiaC.the construction of new pipelines is becoming more difficultD.the rise of oil price
单项选择题A.Revolutionary WarB.the First World WarC.wars involved AmericaD.the Civil War