政府债务收入规模的衡量指标有( )。
A.国债依存度
B.国债负担率
C.国债总额
D.人均国债额
E.国债偿债率
参考答案:A,B,E
成人股骨颈的血液供应主要来源于
A.股骨头圆韧带内的小凹动脉
B.旋股内、外侧动脉分支
C.旋股内动脉
D.旋股外动脉
E.股骨干的滋养动脉
The idea puzzled me so much that I stopped for a few seconds to try to________.[ ]
A. make it out
B. make it off
C. make it up
D. make it over