Decide which of them is appropriate for an academic paper. （ ）A:The use of this method of control unquestionably leads to safer and faster train running in the most adverse weather conditions. B:You can control the trains in this way and if you do that you can be quite sure that they’ll be able to run more safely and more quickly than they would otherwise, no matter how bad the weather gets. 答案: The use of this method of control unquestionably leads to safer and faster train running in the most adverse weather conditions.