【单选题】Drilling oil wells was______work that he couldnt finish it by himself.
【单选题】某产品单价为25元,固定成本为50000元,贡献边际率为40%,则保本量为( )
【简答题】Please finish the banked cloze on Page 12 of your reading textbook.
【简答题】(1) Finish the cloze first (2) and then answer all the questions, (3) enclosing their Chinese equivalents.
【单选题】某产品单价 为25元,固定成本为50000元,单位变动成本为15元,则变动成本率
【单选题】某产品单价为25元,固定成本为50000元,单位变动成本为15元,则保本量为
【判断题】呼吸道传染病只要不直接接触患者就不会被感染( )
【简答题】Finish the Text-related Cloze in page 20 in the text.