主动脉瓣关闭不全主要引起（）
A.左心室容量负荷过重
B.左心室压力负荷过重
C.右心室容量负荷过重
D.右心室压力负荷过重
E.心肌代谢障碍
参考答案：A
The boy insisted that he ＿＿ old enough, and ＿＿ the right to make his own choice.
A．was; be given
B．was; was given
C．be; give
D．is; be given
武汉退休人员丧葬费标准是多少？
