被膜支架最适合治疗
A．冠状动脉狭窄
B．腹主动脉狭窄
C．腹主动脉瘤
D．Budd-Chiari综合征
E．肾动脉闭塞
参考答案：C
构建证券组合的原因是降低风险，对资产进行保值增值。( )
The girl had to her journey because of her mother's illness. [ ]
A. abandon
B. leave
C. desert
D. quit
