根据预防未成年人犯罪法的规定，（）属于未成年人不良行为。
A.旷课、夜不归宿
B.强行向他人索要财物
C.偷窃、故意毁坏财物
参考答案：A, B, C
---When did the young man save you?
---January 1st,2000, the first day of the new century,_______ I can never forget.
A．when
B．which
C．that
D．where
中国社会保障制度的初始阶段（）
A.1949～1956
B.1966～1976
C.1957～1965
D.1976～1985
