Two techniques for forecasting cash flows are to use projection models and averages, or statistical techniques. Which of these two methods would be most appropriate for: medium-term forecastinglong-term forecasting（）

A. Statistical techniques Statistical techniques

B. Statistical techniques Projection models and averages

C. Projection models and averages Statistical techniques

叉车的（）是用来取、升、降货物，并在短途运输中承载货物，从而使叉车完成装卸、堆垛、短距离运输等工作。