下列因素中，可使心排出量减少的是（）
A.后负荷降低
B.前负荷降低
C.动静脉瘘
D.内源性和外源性儿茶酚胺增加
E.副交感神经受抑制
参考答案：B
The old sisters finally in touch with each other again after they were separated for nearly 30 years.[ ]
A. kept
B. were
C. had
D. got
MRI表现为尾状核和大脑皮层萎缩，考虑为何种疾病（）
A.Huntington’s病
B.肝豆状核变性
C.帕金森病
D.进行性核上性麻痹
E.多系统萎缩
