cmhc的介绍里有这么一段: CMHC is Canada’s premier provider of mortgage loan insurance, mortgage-backed securities, housing policy and programs, and housing research. ; \- W- X4 Q* g9 R X9 O; R3 W1 H9 r
mortgage-backed securities不就是“两房”做的房地产为抵押品的债券吗。 r" S" }3 N6 P [2 U9 y5 N