在两部门模型中，居民向企业提供：（）
A、商品
B、商品和劳务
C、劳务
D、生产要素
参考答案：D
You _______ an A on your term paper, but you quoted a little bit more from others' papers.
A．should receive
B．could have received
C．would receive
D．must have received
功能独立性评定的英文缩写是（）
A.FIM
B.IADL
C.BADL
D.ADL
E.MMT
