单项选择题 采用差异化战略的企业适宜采用的绩效考核方法是（ ）。

未知题型 听力原文：I'm going to marry Ellen next month．(5)A.Congratulations!B.Have a good time!C.You are unmarrieD.D.Good job!

未知题型 听力原文：M：Did you finish the exam?W：Yes，but I've never had a more difficult one in my lifE.Q：What did file woman think of the exam?(7)A.The woman didn't take it.B.It was very difficult.C.It was easy.D.It could have been more difficult.