原告请求法院通过判决消灭于被告之间现存的某种民事法律关系之诉，属于（）。
A.确认之诉
B.给付之诉
C.变更之诉
D.反诉
参考答案：C
Unemployment in USA is likely to remain high in 2011, and _____ for the next few years. [ ]
A. possibly
B. necessarily
C. gradually
D. normally
