社会保险费用是指企业按有关规定实际为使用的劳动力缴纳的()费用。
A.养老保险
B.医疗保险
C.失业保险
D.工伤保险
E.生育保险
参考答案:A, B, C, D, E
We like learning French, _____ we may never go to France. [ ]
A. in case
B. however
C. even though
D. since
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