初级

单选题What is the recommended stock of coal?

参考答案:C进入在线模考
此文重点在于理解题干中的recommend和听力原文中的be supposed t0是对应词。文中原句为:We have about 45 tons.But we are suDposed tO have 70 tons.前面的45吨指现有库存,所以可以排除。故选C。