A.血流加速時(shí)間及射血時(shí)間延長(zhǎng)(AT、ET),射血前時(shí)間延長(zhǎng)(PEP) B.AT、PEP延長(zhǎng),ET縮短 C.血流加速度時(shí)間縮短(AT),射血時(shí)間縮短(ET),射血前時(shí)間延長(zhǎng)(PEP) D.AT、ET、PEP均縮短 E.AT、ET無(wú)變化,PEP延長(zhǎng)