问题描述：
Have you learned German?Yes.It's___ language I've ever learned.
A.a quite difficult
B.quite a difficult
C.difficult quite
D.difficult a quite
A＆B有什么区别.
A.a quite difficult
B.quite a difficult
C.difficult quite
D.difficult a quite
A＆B有什么区别.
问题解答：
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