魏玛共和国时期增加的社会福利内容是()。
A、危机救济
B、牺牲者供给
C、失业保险
D、A、B、C
参考答案:D
如果两圆的半径分别是4和7,两圆的连心线段长为3,则两圆的位置关系是
A.外离
B.内含
C.外切
D.内切
—My father was ill in hospital.
—_________. [ ]
A. That's too bad
B. Really
C. I knew that
D. I'm sorry to hear that