a. + heartbeat >>共 72
irregular 67.01%
rapid 7.10%
abnormal 2.30%
slow 1.46%
erratic 1.25%
regular 1.25%
too-slow 1.25%
racing 1.04%
fast 0.84%
normal 0.84%
irregular + n. >>共 222
heartbeat 38.21%
heart 9.76%
interval 2.50%
shape 1.79%
force 1.67%
hour 1.43%
payment 1.43%
pattern 1.07%
period 1.07%
verb 0.95%
每页显示:    共 319