71.43%23.81%4.76%P = 0.05-0.710.50.530.50.5

y zhu0.470.22iy zhu0.120.50.220.312320.050.500.314260.240.50.440.3197 0.210.440.3

120404050%

90-1000%

80-892.94%

70-792.94%

60-698.82%

50-5911.77%

40-4920.59%

30-3917.65%

20-2923.53%

10-1911.77%

0-90%

1

X=38.2R=65S=16.990~1000% 80~892.94% 70~792.94%60~698.82%50~5911.77%40~4920.59%30~3917.65%,20~2923.53%, 10~1911.77%0~3914.6%40%38.2%47.06%52.94%3221.338.2 16.955.138.2 + 16.94026.8%